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Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??

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  • Rick Simpson
    Google copy raspi sd . (without the quotes) ... From: Kutche, Jerry (Mitchell) USA To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com Sent: Sunday, January 06,
    Message 1 of 25 , Jan 6, 2013
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      Google "copy raspi sd". (without the quotes)
       
      ----- Original Message -----
      Sent: Sunday, January 06, 2013 10:43 AM
      Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??

       

      Windisk32

       

      Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??


      TNX Will WC2L

    • William Liporace - WC2L
      Appreciate the answers. Interestingly, I had figured it out. One question, is there a way to copy from 8 GB card to a 4 GB card? I know I can go the other way
      Message 2 of 25 , Jan 6, 2013
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        Appreciate the answers…  Interestingly, I had figured it out… One question, is there a way to copy from 8 GB card to a 4 GB card? I know I can go the other way ;-)

         

         

        TNX Will WC2L

         

        From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of William Liporace - WC2L
        Sent: Sunday, January 06, 2013 9:49 AM
        To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
        Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??

         




        Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??


        TNX Will WC2L




      • John D. Hays
        On Linux you can carefully use the dd or cpio commands. ... John D. Hays K7VE PO Box 1223, Edmonds, WA 98020-1223
        Message 3 of 25 , Jan 6, 2013
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          On Linux you can carefully use the dd or cpio commands.



          John D. Hays
          K7VE
          PO Box 1223, Edmonds, WA 98020-1223 
            


          On Sun, Jan 6, 2013 at 11:05 AM, William Liporace - WC2L <wc2l@...> wrote:
           

          Appreciate the answers…  Interestingly, I had figured it out… One question, is there a way to copy from 8 GB card to a 4 GB card? I know I can go the other way ;-)

           

           

          TNX Will WC2L


        • Rick Nicholson
          Will   Not if the image has been resized to fill the card, you would have benn given that option when you first loaded the card and booted the image.   If
          Message 4 of 25 , Jan 6, 2013
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            Will
             
            Not if the image has been resized to fill the card, you would have benn given that option when you first loaded the card and booted the image.
             
            If resizing has not been done the card you should be able to copy and reloaded on the 4GB card..
             
            You can check this by reading the card and see how much of the image was expanded onto the card. if it is less than 4GB you should be good to go!
             
             
            Rick/n9umj

            From: William Liporace - WC2L <wc2l@...>
            To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
            Sent: Sunday, January 6, 2013 2:05 PM
            Subject: RE: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
             
            Appreciate the answers…  Interestingly, I had figured it out… One question, is there a way to copy from 8 GB card to a 4 GB card? I know I can go the other way ;-)
             
             
            TNX Will WC2L
             
            From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of William Liporace - WC2L
            Sent: Sunday, January 06, 2013 9:49 AM
            To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
            Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
             



            Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??

            TNX Will WC2L



          • Rick Nicholson
            Will   If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in
            Message 5 of 25 , Jan 6, 2013
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              Will
               
              If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.
               
               
              Rick

              From: William Liporace - WC2L <wc2l@...>
              To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
              Sent: Sunday, January 6, 2013 9:49 AM
              Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
               
              Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??

              TNX Will WC2L
            • Andy B
              It s Win32diskimager (winimage for short): https://launchpad.net/win32-image-writer/+download You can use gparted in another linux box to resize up & down.
              Message 6 of 25 , Jan 7, 2013
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                It's Win32diskimager (winimage for short):  https://launchpad.net/win32-image-writer/+download

                You can use "gparted" in another linux box to resize up & down.

                However I've noticed so far that even if you shrink the partition
                can't get smaller image.    The Winimage makes image of the entire
                drive.  IE: if it's an 8 gig that's what we get. Will be pursuing
                this more as would like to shrink some down again. (for storage)

                " sudo apt-get gparted" or use synaptic package manager.
                Must use different machine,& of course get the right partition!:)

                 
                Later,Andy (AC2HE)

                From: Rick Nicholson <n9umj@...>
                To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com" <Raspberry_Pi_4-Ham_RADIO@yahoogroups.com>
                Sent: Monday, January 7, 2013 1:51 AM
                Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??

                 
                Will
                 
                If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.
                 
                 
                Rick

                From: William Liporace - WC2L <wc2l@...>
                To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                Sent: Sunday, January 6, 2013 9:49 AM
                Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                 
                Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??

                TNX Will WC2L


              • John
                If you are running Linux use dd: man dd for help.
                Message 7 of 25 , Jan 9, 2013
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                  If you are running Linux use dd:
                  man dd for help.


                  --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                  >
                  > It's Win32diskimager (winimage for short): https://launchpad.net/win32-image-writer/+download
                  >
                  > You can use "gparted" in another linux box to resize up & down.
                  >
                  > However I've noticed so far that even if you shrink the partition
                  > can't get smaller image.    The Winimage makes image of the entire
                  > drive.  IE: if it's an 8 gig that's what we get. Will be pursuing
                  > this more as would like to shrink some down again. (for storage)
                  >
                  > " sudo apt-get gparted" or use synaptic package manager.
                  > Must use different machine,& of course get the right partition!:)
                  >
                  >
                  >  
                  > Later,Andy (AC2HE)
                  >
                  >
                  > ________________________________
                  > From: Rick Nicholson
                  > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                  > Sent: Monday, January 7, 2013 1:51 AM
                  > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                  >
                  >
                  >  
                  > Will
                  >  
                  > If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.
                  >  
                  >  
                  > Rick
                  >
                  > From: William Liporace - WC2L
                  > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                  > Sent: Sunday, January 6, 2013 9:49 AM
                  > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                  >
                  >  
                  > Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??
                  >
                  > TNX Will WC2L
                  >
                • Jeff Francis™
                  While dd works great, take a minute and install dd_rescue (if you re on a Debian-derived linux, do sudo apt-get install dd_rescue ). dd_rescue gives you
                  Message 8 of 25 , Jan 9, 2013
                  • 0 Attachment
                      While dd works great, take a minute and install dd_rescue (if you're on a Debian-derived linux, do "sudo apt-get install dd_rescue").  dd_rescue gives you progress updates and time estimates.  Functionally, it's the same, it just gives more feedback.

                      To copy an image off of an SD card, you'll need to know which device it is and what you'd like to name the image file on your hard drive.  Assume that the SD card is /dev/sdb and you want to name the image file on your hard drive foo.dd.  Run the following command:

                    sudo dd_rescue /dev/sdb foo.dd

                    or if you prefer dd:

                    sudo dd if=/dev/sdb of=foo.dd bs=4k

                      After a wait, you'll have an image of your SD card on your hard drive called foo.dd.  That file is typically very compressable.  Use bzip2 -9 for maximum compression.

                      To write an image onto an SD card, it's very similar.  Again, assume sdb and foo.dd:

                    sudo dd_rescue foo.dd /dev/sdb
                    or
                    sudo dd if=foo.dd of=/dev/sdb bs=4k

                      Note that you shouldn't guess what disk device the card is.  If you guess wrong (ie, /dev/sda), you'll write the image onto your hard drive rather than your SD card.  Errors are dangerous!

                      If you have two SD card readers in your machine (say sdb and sdc), you can copy directly from one card to the other:

                    sudo dd_rescue /dev/sdb /dev/sdc
                    or
                    sudo dd if=/dev/sdb of=/dev/sdc bs=4k

                      This doesn't work for moving data between cards of different sizes.  If you dd a 4gig image onto an 8gig, you won't hurt anything, other than you'll only use half of the space on the 8gig card unless/until you expand the filesystem.  No harm done.  On the other hand, if you try to dd an 8gig image onto a 4gig card, you can cause yourself endless grief.  First of all, there's no guarantee that even if there's less than 4gig of data on the 8gig image that the data is at the "bottom" of the filesystem.  Your system will also see an 8gig partition on a 4gig device, causing all sorts of headaches.  The solution here is to mount the source device (for example, on /media/deadbeef) then partition, format, and mount the destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/sd?", then "sudo mount /dev/sd?? /mnt").  Then you can copy the contents with something like rsync ("sudo rsync -av --delete /media/deadbeef/ /mnt/").  Again, don't just guess the values where the "?" are, you're guaranteed to hork things permanently).  Using rsync will work so long as the data from the larger card will fit in the available space on the smaller card.  If you don't have rsync on your system, you can do it the way we did it in the old days:

                    cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/

                      But that's pretty old-school. :D  Doing a recursive copy with cp may or may not preserve ownership and permissions, depending on the flags you provide.  And it won't copy special files (ie, files in /dev/, /proc/, etc).



                    On Wed, Jan 9, 2013 at 10:20 AM, John <ne3e001@...> wrote:
                     

                    If you are running Linux use dd:
                    man dd for help.

                    --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                    >
                    > It's Win32diskimager (winimage for short): https://launchpad.net/win32-image-writer/+download


                    >
                    > You can use "gparted" in another linux box to resize up & down.
                    >
                    > However I've noticed so far that even if you shrink the partition
                    > can't get smaller image.    The Winimage makes image of the entire
                    > drive.  IE: if it's an 8 gig that's what we get. Will be pursuing

                    > this more as would like to shrink some down again. (for storage)
                    >
                    > " sudo apt-get gparted" or use synaptic package manager.
                    > Must use different machine,& of course get the right partition!:)
                    >
                    >
                    >  

                    > Later,Andy (AC2HE)
                    >
                    >
                    > ________________________________
                    > From: Rick Nicholson
                    > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                    > Sent: Monday, January 7, 2013 1:51 AM
                    > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                    >
                    >
                    >  
                    > Will
                    >  

                    > If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.
                    >  
                    >  

                    > Rick
                    >
                    > From: William Liporace - WC2L
                    > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                    > Sent: Sunday, January 6, 2013 9:49 AM
                    > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                    >
                    >  
                    > Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??
                    >
                    > TNX Will WC2L
                    >




                    --
                    -=jeff=-
                  • William Liporace - WC2L
                    Awesome!! Thank you for the lesson! Will WC2L From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of
                    Message 9 of 25 , Jan 9, 2013
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                      Awesome!! Thank you  for the lesson!

                       

                      Will WC2L

                       

                      From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Jeff Francis™
                      Sent: Wednesday, January 09, 2013 7:19 PM
                      To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                      Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                       



                        While dd works great, take a minute and install dd_rescue (if you're on a Debian-derived linux, do "sudo apt-get install dd_rescue").  dd_rescue gives you progress updates and time estimates.  Functionally, it's the same, it just gives more feedback.

                       

                        To copy an image off of an SD card, you'll need to know which device it is and what you'd like to name the image file on your hard drive.  Assume that the SD card is /dev/sdb and you want to name the image file on your hard drive foo.dd.  Run the following command:

                       

                      sudo dd_rescue /dev/sdb foo.dd

                       

                      or if you prefer dd:

                       

                      sudo dd if=/dev/sdb of=foo.dd bs=4k

                       

                        After a wait, you'll have an image of your SD card on your hard drive called foo.dd.  That file is typically very compressable.  Use bzip2 -9 for maximum compression.

                       

                        To write an image onto an SD card, it's very similar.  Again, assume sdb and foo.dd:

                       

                      sudo dd_rescue foo.dd /dev/sdb

                      or

                      sudo dd if=foo.dd of=/dev/sdb bs=4k

                       

                        Note that you shouldn't guess what disk device the card is.  If you guess wrong (ie, /dev/sda), you'll write the image onto your hard drive rather than your SD card.  Errors are dangerous!

                       

                        If you have two SD card readers in your machine (say sdb and sdc), you can copy directly from one card to the other:

                       

                      sudo dd_rescue /dev/sdb /dev/sdc

                      or

                      sudo dd if=/dev/sdb of=/dev/sdc bs=4k

                       

                        This doesn't work for moving data between cards of different sizes.  If you dd a 4gig image onto an 8gig, you won't hurt anything, other than you'll only use half of the space on the 8gig card unless/until you expand the filesystem.  No harm done.  On the other hand, if you try to dd an 8gig image onto a 4gig card, you can cause yourself endless grief.  First of all, there's no guarantee that even if there's less than 4gig of data on the 8gig image that the data is at the "bottom" of the filesystem.  Your system will also see an 8gig partition on a 4gig device, causing all sorts of headaches.  The solution here is to mount the source device (for example, on /media/deadbeef) then partition, format, and mount the destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/sd?", then "sudo mount /dev/sd?? /mnt").  Then you can copy the contents with something like rsync ("sudo rsync -av --delete /media/deadbeef/ /mnt/").  Again, don't just guess the values where the "?" are, you're guaranteed to hork things permanently).  Using rsync will work so long as the data from the larger card will fit in the available space on the smaller card.  If you don't have rsync on your system, you can do it the way we did it in the old days:

                       

                      cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/

                       

                        But that's pretty old-school. :D  Doing a recursive copy with cp may or may not preserve ownership and permissions, depending on the flags you provide.  And it won't copy special files (ie, files in /dev/, /proc/, etc).

                       

                       

                      On Wed, Jan 9, 2013 at 10:20 AM, John <ne3e001@...> wrote:

                       

                      If you are running Linux use dd:
                      man dd for help.

                      --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                      >
                      > It's Win32diskimager (winimage for short): https://launchpad.net/win32-image-writer/+download


                      >
                      > You can use "gparted" in another linux box to resize up & down.
                      >
                      > However I've noticed so far that even if you shrink the partition

                      > can't get smaller image.    The Winimage makes image of the entire
                      > drive.  IE: if it's an 8 gig that's what we get. Will be pursuing


                      > this more as would like to shrink some down again. (for storage)
                      >
                      > " sudo apt-get gparted" or use synaptic package manager.
                      > Must use different machine,& of course get the right partition!:)
                      >
                      >

                      >  


                      > Later,Andy (AC2HE)
                      >
                      >
                      > ________________________________
                      > From: Rick Nicholson

                      > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"

                      > Sent: Monday, January 7, 2013 1:51 AM
                      > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                      >
                      >

                      >  
                      > Will
                      >  


                      > If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.

                      >  
                      >  


                      > Rick
                      >
                      > From: William Liporace - WC2L

                      > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                      > Sent: Sunday, January 6, 2013 9:49 AM
                      > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                      >

                      >  

                      > Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??
                      >
                      > TNX Will WC2L
                      >



                       

                      --
                      -=jeff=-




                    • Kutche, Jerry (Mitchell) USA
                      Jerry Kutche Electrical Supervisor Lehigh Cement Company LLC 180 N. Meridian Road Mitchell, IN 47446 Phone: (812) 849-2191 ext. 251 Fax: (812) 849-5007
                      Message 10 of 25 , Jan 10, 2013
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                        Jerry Kutche
                        Electrical Supervisor
                         

                        Lehigh Cement Company LLC
                        180 N. Meridian Road
                        Mitchell, IN  47446
                        Phone:  (812) 849-2191 ext. 251
                        Fax:  (812) 849-5007
                        Cell: (812) 583-0445
                        jkutche@...
                        www.lehighcement.com

                        This e-mail may contain confidential and/or legally privileged information.  If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail.  Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

                         


                        From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Jeff Francis™
                        Sent: Wednesday, January 09, 2013 7:19 PM
                        To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                        Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                         

                          While dd works great, take a minute and install dd_rescue (if you're on a Debian-derived linux, do "sudo apt-get install dd_rescue").  dd_rescue gives you progress updates and time estimates.  Functionally, it's the same, it just gives more feedback.


                          To copy an image off of an SD card, you'll need to know which device it is and what you'd like to name the image file on your hard drive.  Assume that the SD card is /dev/sdb and you want to name the image file on your hard drive foo.dd.  Run the following command:

                        sudo dd_rescue /dev/sdb foo.dd

                        or if you prefer dd:

                        sudo dd if=/dev/sdb of=foo.dd bs=4k

                          After a wait, you'll have an image of your SD card on your hard drive called foo.dd.  That file is typically very compressable.  Use bzip2 -9 for maximum compression.

                          To write an image onto an SD card, it's very similar.  Again, assume sdb and foo.dd:

                        sudo dd_rescue foo.dd /dev/sdb
                        or
                        sudo dd if=foo.dd of=/dev/sdb bs=4k

                          Note that you shouldn't guess what disk device the card is.  If you guess wrong (ie, /dev/sda), you'll write the image onto your hard drive rather than your SD card.  Errors are dangerous!

                          If you have two SD card readers in your machine (say sdb and sdc), you can copy directly from one card to the other:

                        sudo dd_rescue /dev/sdb /dev/sdc
                        or
                        sudo dd if=/dev/sdb of=/dev/sdc bs=4k

                          This doesn't work for moving data between cards of different sizes.  If you dd a 4gig image onto an 8gig, you won't hurt anything, other than you'll only use half of the space on the 8gig card unless/until you expand the filesystem.  No harm done.  On the other hand, if you try to dd an 8gig image onto a 4gig card, you can cause yourself endless grief.  First of all, there's no guarantee that even if there's less than 4gig of data on the 8gig image that the data is at the "bottom" of the filesystem.  Your system will also see an 8gig partition on a 4gig device, causing all sorts of headaches.  The solution here is to mount the source device (for example, on /media/deadbeef) then partition, format, and mount the destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/sd?", then "sudo mount /dev/sd?? /mnt").  Then you can copy the contents with something like rsync ("sudo rsync -av --delete /media/deadbeef/ /mnt/").  Again, don't just guess the values where the "?" are, you're guaranteed to hork things permanently).  Using rsync will work so long as the data from the larger card will fit in the available space on the smaller card.  If you don't have rsync on your system, you can do it the way we did it in the old days:

                        cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/

                          But that's pretty old-school. :D  Doing a recursive copy with cp may or may not preserve ownership and permissions, depending on the flags you provide.  And it won't copy special files (ie, files in /dev/, /proc/, etc).



                        On Wed, Jan 9, 2013 at 10:20 AM, John <ne3e001@...> wrote:
                         

                        If you are running Linux use dd:
                        man dd for help.

                        --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                        >
                        > It's Win32diskimager (winimage for short): https://launchpad.net/win32-image-writer/+download


                        >
                        > You can use "gparted" in another linux box to resize up & down.
                        >
                        > However I've noticed so far that even if you shrink the partition
                        > can't get smaller image.    The Winimage makes image of the entire
                        > drive.  IE: if it's an 8 gig that's what we get. Will be pursuing

                        > this more as would like to shrink some down again. (for storage)
                        >
                        > " sudo apt-get gparted" or use synaptic package manager.
                        > Must use different machine,& of course get the right partition!:)
                        >
                        >
                        >  

                        > Later,Andy (AC2HE)
                        >
                        >
                        > ________________________________
                        > From: Rick Nicholson
                        > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                        > Sent: Monday, January 7, 2013 1:51 AM
                        > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                        >
                        >
                        >  
                        > Will
                        >  

                        > If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.
                        >  
                        >  

                        > Rick
                        >
                        > From: William Liporace - WC2L
                        > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                        > Sent: Sunday, January 6, 2013 9:49 AM
                        > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                        >
                        >  
                        > Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??
                        >
                        > TNX Will WC2L
                        >




                        --
                        -=jeff=-

                      • John B. Cundiff Jr
                        I wood like to buy a SD card pre loaded with Linux OS and SDR programs I can use with a Realtec Dongle . that I can use with the Raspberry Pi computer. I
                        Message 11 of 25 , Jan 10, 2013
                        • 0 Attachment



                          I wood like to buy a SD card  pre loaded with Linux OS and  SDR  programs I can use with a  Realtec Dongle .
                          that I can use with the Raspberry Pi  computer.
                          I have been unable to  make my own SD cards that will  work.




                          On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:

                           

                          Awesome!! Thank you  for the lesson!

                           

                          Will WC2L

                           

                          From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Jeff Francis™
                          Sent: Wednesday, January 09, 2013 7:19 PM
                          To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                          Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                           



                            While dd works great, take a minute and install dd_rescue (if you're on a Debian-derived linux, do "sudo apt-get install dd_rescue").  dd_rescue gives you progress updates and time estimates.  Functionally, it's the same, it just gives more feedback.

                           

                            To copy an image off of an SD card, you'll need to know which device it is and what you'd like to name the image file on your hard drive.  Assume that the SD card is /dev/sdb and you want to name the image file on your hard drive foo.dd.  Run the following command:

                           

                          sudo dd_rescue /dev/sdb foo.dd

                           

                          or if you prefer dd:

                           

                          sudo dd if=/dev/sdb of=foo.dd bs=4k

                           

                            After a wait, you'll have an image of your SD card on your hard drive called foo.dd.  That file is typically very compressable.  Use bzip2 -9 for maximum compression.

                           

                            To write an image onto an SD card, it's very similar.  Again, assume sdb and foo.dd:

                           

                          sudo dd_rescue foo.dd /dev/sdb

                          or

                          sudo dd if=foo.dd of=/dev/sdb bs=4k

                           

                            Note that you shouldn't guess what disk device the card is.  If you guess wrong (ie, /dev/sda), you'll write the image onto your hard drive rather than your SD card.  Errors are dangerous!

                           

                            If you have two SD card readers in your machine (say sdb and sdc), you can copy directly from one card to the other:

                           

                          sudo dd_rescue /dev/sdb /dev/sdc

                          or

                          sudo dd if=/dev/sdb of=/dev/sdc bs=4k

                           

                            This doesn't work for moving data between cards of different sizes.  If you dd a 4gig image onto an 8gig, you won't hurt anything, other than you'll only use half of the space on the 8gig card unless/until you expand the filesystem.  No harm done.  On the other hand, if you try to dd an 8gig image onto a 4gig card, you can cause yourself endless grief.  First of all, there's no guarantee that even if there's less than 4gig of data on the 8gig image that the data is at the "bottom" of the filesystem.  Your system will also see an 8gig partition on a 4gig device, causing all sorts of headaches.  The solution here is to mount the source device (for example, on /media/deadbeef) then partition, format, and mount the destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/sd?", then "sudo mount /dev/sd?? /mnt").  Then you can copy the contents with something like rsync ("sudo rsync -av --delete /media/deadbeef/ /mnt/").  Again, don't just guess the values where the "?" are, you're guaranteed to hork things permanently).  Using rsync will work so long as the data from the larger card will fit in the available space on the smaller card.  If you don't have rsync on your system, you can do it the way we did it in the old days:

                           

                          cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/

                           

                            But that's pretty old-school. :D  Doing a recursive copy with cp may or may not preserve ownership and permissions, depending on the flags you provide.  And it won't copy special files (ie, files in /dev/, /proc/, etc).

                           

                           

                          On Wed, Jan 9, 2013 at 10:20 AM, John <ne3e001@...> wrote:

                           

                          If you are running Linux use dd:
                          man dd for help.

                          --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                          >
                          > It's Win32diskimager (winimage for short): https://launchpad.net/win32-image-writer/+download


                          >
                          > You can use "gparted" in another linux box to resize up & down.
                          >
                          > However I've noticed so far that even if you shrink the partition

                          > can't get smaller image.    The Winimage makes image of the entire
                          > drive.  IE: if it's an 8 gig that's what we get. Will be pursuing


                          > this more as would like to shrink some down again. (for storage)
                          >
                          > " sudo apt-get gparted" or use synaptic package manager.
                          > Must use different machine,& of course get the right partition!:)
                          >
                          >

                          >  


                          > Later,Andy (AC2HE)
                          >
                          >
                          > ________________________________
                          > From: Rick Nicholson

                          > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"

                          > Sent: Monday, January 7, 2013 1:51 AM
                          > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                          >
                          >

                          >  
                          > Will
                          >  


                          > If you have a reader writer you can copy the image and rewrite it onto another card/ If your using Windows you will have to use the imager reference in the RPI beginners guide/ I dont recalll the name of the utility.

                          >  
                          >  


                          > Rick
                          >
                          > From: William Liporace - WC2L

                          > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                          > Sent: Sunday, January 6, 2013 9:49 AM
                          > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                          >

                          >  

                          > Is there an easy way to copy SD cards?? Do you create an image or can copy the files from one to another??
                          >
                          > TNX Will WC2L
                          >



                           

                          --
                          -=jeff=-






                        • Andy
                          John: Here s a link to MCM that has 4 gig sd cards with the Raspian Wheezy image on them. http://www.mcmelectronics.com/product/83-14268 Don t believe you
                          Message 12 of 25 , Jan 10, 2013
                          • 0 Attachment
                            John:

                            Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                            image on them. http://www.mcmelectronics.com/product/83-14268

                            Don't believe you can boot from a dongle,maybe some one else knows for sure. You boot from the SD slot built into the Pi.

                            This place has lots of accessories for the Pi. I have no connection to them other than buying from them a few times.

                            Later Andy (AC2HE)


                            --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr" wrote:
                            >
                            >
                            >
                            >
                            > I wood like to buy a SD card pre loaded with Linux OS and SDR
                            > programs I can use with a Realtec Dongle .
                            > that I can use with the Raspberry Pi computer.
                            > I have been unable to make my own SD cards that will work.
                            >
                            > jbcundiffjr@...
                            >
                            >
                            >
                            > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                            >
                            > >
                            > > Awesome!! Thank you for the lesson!
                            > >
                            > >
                            > >
                            > > Will WC2L
                            > >
                            > >
                            > >
                            > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                            > > ] On Behalf Of Jeff Francis™
                            > > Sent: Wednesday, January 09, 2013 7:19 PM
                            > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                            > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                            > >
                            > >
                            > >
                            > >
                            > >
                            > > While dd works great, take a minute and install dd_rescue (if
                            > > you're on a Debian-derived linux, do "sudo apt-get install
                            > > dd_rescue"). dd_rescue gives you progress updates and time
                            > > estimates. Functionally, it's the same, it just gives more feedback.
                            > >
                            > >
                            > >
                            > > To copy an image off of an SD card, you'll need to know which
                            > > device it is and what you'd like to name the image file on your hard
                            > > drive. Assume that the SD card is /dev/sdb and you want to name the
                            > > image file on your hard drive foo.dd. Run the following command:
                            > >
                            > >
                            > >
                            > > sudo dd_rescue /dev/sdb foo.dd
                            > >
                            > >
                            > >
                            > > or if you prefer dd:
                            > >
                            > >
                            > >
                            > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                            > >
                            > >
                            > >
                            > > After a wait, you'll have an image of your SD card on your hard
                            > > drive called foo.dd. That file is typically very compressable. Use
                            > > bzip2 -9 for maximum compression.
                            > >
                            > >
                            > >
                            > > To write an image onto an SD card, it's very similar. Again,
                            > > assume sdb and foo.dd:
                            > >
                            > >
                            > >
                            > > sudo dd_rescue foo.dd /dev/sdb
                            > >
                            > > or
                            > >
                            > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                            > >
                            > >
                            > >
                            > > Note that you shouldn't guess what disk device the card is. If
                            > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                            > > hard drive rather than your SD card. Errors are dangerous!
                            > >
                            > >
                            > >
                            > > If you have two SD card readers in your machine (say sdb and sdc),
                            > > you can copy directly from one card to the other:
                            > >
                            > >
                            > >
                            > > sudo dd_rescue /dev/sdb /dev/sdc
                            > >
                            > > or
                            > >
                            > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                            > >
                            > >
                            > >
                            > > This doesn't work for moving data between cards of different
                            > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                            > > anything, other than you'll only use half of the space on the 8gig
                            > > card unless/until you expand the filesystem. No harm done. On the
                            > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                            > > cause yourself endless grief. First of all, there's no guarantee
                            > > that even if there's less than 4gig of data on the 8gig image that
                            > > the data is at the "bottom" of the filesystem. Your system will
                            > > also see an 8gig partition on a 4gig device, causing all sorts of
                            > > headaches. The solution here is to mount the source device (for
                            > > example, on /media/deadbeef) then partition, format, and mount the
                            > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                            > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                            > > contents with something like rsync ("sudo rsync -av --delete /media/
                            > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                            > > are, you're guaranteed to hork things permanently). Using rsync
                            > > will work so long as the data from the larger card will fit in the
                            > > available space on the smaller card. If you don't have rsync on
                            > > your system, you can do it the way we did it in the old days:
                            > >
                            > >
                            > >
                            > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                            > >
                            > >
                            > >
                            > > But that's pretty old-school. :D Doing a recursive copy with cp
                            > > may or may not preserve ownership and permissions, depending on the
                            > > flags you provide. And it won't copy special files (ie, files in /
                            > > dev/, /proc/, etc).
                            > >
                            > >
                            > >
                            > >
                            > >
                            > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                            > >
                            > >
                            > >
                            > > If you are running Linux use dd:
                            > > man dd for help.
                            > >
                            > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                            > > >
                            > > > It's Win32diskimager (winimage for short):Â https://launchpad.net/win32-image-writer/+download
                            > >
                            > >
                            > > >
                            > > > You can use "gparted" in another linux box to resize up & down.
                            > > >
                            > > > However I've noticed so far that even if you shrink the partition
                            > >
                            > > > can't get smaller image.   The Winimage makes image of the
                            > > entire
                            > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                            > >
                            > >
                            > > > this more as would like to shrink some down again. (for storage)
                            > > >
                            > > > " sudo apt-get gparted" or use synaptic package manager.
                            > > > Must use different machine,& of course get the right partition!:)
                            > > >
                            > > >
                            > >
                            > > > Â
                            > >
                            > >
                            > > > Later,Andy (AC2HE)
                            > > >
                            > > >
                            > > > ________________________________
                            > > > From: Rick Nicholson
                            > >
                            > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                            > >
                            > > > Sent: Monday, January 7, 2013 1:51 AM
                            > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                            > > >
                            > > >
                            > >
                            > > > Â
                            > > > Will
                            > > > Â
                            > >
                            > >
                            > > > If you have a reader writer you can copy the image and rewrite it
                            > > onto another card/ If your using Windows you will have to use the
                            > > imager reference in the RPI beginners guide/ I dont recalll the name
                            > > of the utility.
                            > >
                            > > > Â
                            > > > Â
                            > >
                            > >
                            > > > Rick
                            > > >
                            > > > From: William Liporace - WC2L
                            > >
                            > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                            > > > Sent: Sunday, January 6, 2013 9:49 AM
                            > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                            > > >
                            > >
                            > > > Â
                            > >
                            > > > Is there an easy way to copy SD cards?? Do you create an image or
                            > > can copy the files from one to another??
                            > > >
                            > > > TNX Will WC2L
                            > > >
                            > >
                            > >
                            > >
                            > >
                            > >
                            > >
                            > > --
                            > > -=jeff=-
                            > >
                            > >
                            > >
                            > >
                            > >
                            > >
                            > >
                            > >
                            >
                          • John B. Cundiff Jr
                            Do not want to boot from a Dongle ,,the Software Defined Radio is in the Dongle that plugs into the USB port. The SD card I will boot from and it needs to
                            Message 13 of 25 , Jan 10, 2013
                            • 0 Attachment

                              Do not want to boot from a Dongle ,,the Software Defined Radio is in the Dongle  that plugs into the USB port.
                              The SD card   I will boot from  and it  needs to also  contain the Software Defined Radio  software for trhe  Realtec  Doongle   and the Linux operating system.
                              I want some body who knows how to  sell me a preloaded SD memory card  with both the  OS and  SDR software on it .
                              So all I got to do is  plug and play .

                              john KA3WSR   jbcundiffjr@...



                              On Jan 10, 2013, at 5:19 PM, Andy wrote:

                               



                              John:

                              Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                              image on them. http://www.mcmelectronics.com/product/83-14268

                              Don't believe you can boot from a dongle,maybe some one else knows for sure. You boot from the SD slot built into the Pi.

                              This place has lots of accessories for the Pi. I have no connection to them other than buying from them a few times.

                              Later Andy (AC2HE)

                              --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr" wrote:
                              >
                              >
                              >
                              >
                              > I wood like to buy a SD card pre loaded with Linux OS and SDR
                              > programs I can use with a Realtec Dongle .
                              > that I can use with the Raspberry Pi computer.
                              > I have been unable to make my own SD cards that will work.
                              >
                              > jbcundiffjr@...
                              >
                              >
                              >
                              > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                              >
                              > >
                              > > Awesome!! Thank you for the lesson!
                              > >
                              > >
                              > >
                              > > Will WC2L
                              > >
                              > >
                              > >
                              > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                              > > ] On Behalf Of Jeff Francis™
                              > > Sent: Wednesday, January 09, 2013 7:19 PM
                              > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                              > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                              > >
                              > >
                              > >
                              > >
                              > >
                              > > While dd works great, take a minute and install dd_rescue (if
                              > > you're on a Debian-derived linux, do "sudo apt-get install
                              > > dd_rescue"). dd_rescue gives you progress updates and time
                              > > estimates. Functionally, it's the same, it just gives more feedback.
                              > >
                              > >
                              > >
                              > > To copy an image off of an SD card, you'll need to know which
                              > > device it is and what you'd like to name the image file on your hard
                              > > drive. Assume that the SD card is /dev/sdb and you want to name the
                              > > image file on your hard drive foo.dd. Run the following command:
                              > >
                              > >
                              > >
                              > > sudo dd_rescue /dev/sdb foo.dd
                              > >
                              > >
                              > >
                              > > or if you prefer dd:
                              > >
                              > >
                              > >
                              > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                              > >
                              > >
                              > >
                              > > After a wait, you'll have an image of your SD card on your hard
                              > > drive called foo.dd. That file is typically very compressable. Use
                              > > bzip2 -9 for maximum compression.
                              > >
                              > >
                              > >
                              > > To write an image onto an SD card, it's very similar. Again,
                              > > assume sdb and foo.dd:
                              > >
                              > >
                              > >
                              > > sudo dd_rescue foo.dd /dev/sdb
                              > >
                              > > or
                              > >
                              > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                              > >
                              > >
                              > >
                              > > Note that you shouldn't guess what disk device the card is. If
                              > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                              > > hard drive rather than your SD card. Errors are dangerous!
                              > >
                              > >
                              > >
                              > > If you have two SD card readers in your machine (say sdb and sdc),
                              > > you can copy directly from one card to the other:
                              > >
                              > >
                              > >
                              > > sudo dd_rescue /dev/sdb /dev/sdc
                              > >
                              > > or
                              > >
                              > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                              > >
                              > >
                              > >
                              > > This doesn't work for moving data between cards of different
                              > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                              > > anything, other than you'll only use half of the space on the 8gig
                              > > card unless/until you expand the filesystem. No harm done. On the
                              > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                              > > cause yourself endless grief. First of all, there's no guarantee
                              > > that even if there's less than 4gig of data on the 8gig image that
                              > > the data is at the "bottom" of the filesystem. Your system will
                              > > also see an 8gig partition on a 4gig device, causing all sorts of
                              > > headaches. The solution here is to mount the source device (for
                              > > example, on /media/deadbeef) then partition, format, and mount the
                              > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                              > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                              > > contents with something like rsync ("sudo rsync -av --delete /media/
                              > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                              > > are, you're guaranteed to hork things permanently). Using rsync
                              > > will work so long as the data from the larger card will fit in the
                              > > available space on the smaller card. If you don't have rsync on
                              > > your system, you can do it the way we did it in the old days:
                              > >
                              > >
                              > >
                              > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                              > >
                              > >
                              > >
                              > > But that's pretty old-school. :D Doing a recursive copy with cp
                              > > may or may not preserve ownership and permissions, depending on the
                              > > flags you provide. And it won't copy special files (ie, files in /
                              > > dev/, /proc/, etc).
                              > >
                              > >
                              > >
                              > >
                              > >
                              > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                              > >
                              > >
                              > >
                              > > If you are running Linux use dd:
                              > > man dd for help.
                              > >
                              > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                              > > >
                              > > > It's Win32diskimager (winimage for short):Â https://launchpad.net/win32-image-writer/+download
                              > >
                              > >
                              > > >
                              > > > You can use "gparted" in another linux box to resize up & down.
                              > > >
                              > > > However I've noticed so far that even if you shrink the partition
                              > >
                              > > > can't get smaller image.   The Winimage makes image of the
                              > > entire
                              > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                              > >
                              > >
                              > > > this more as would like to shrink some down again. (for storage)
                              > > >
                              > > > " sudo apt-get gparted" or use synaptic package manager.
                              > > > Must use different machine,& of course get the right partition!:)
                              > > >
                              > > >
                              > >
                              > > > Â
                              > >
                              > >
                              > > > Later,Andy (AC2HE)
                              > > >
                              > > >
                              > > > ________________________________
                              > > > From: Rick Nicholson
                              > >
                              > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                              > >
                              > > > Sent: Monday, January 7, 2013 1:51 AM
                              > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                              > > >
                              > > >
                              > >
                              > > > Â
                              > > > Will
                              > > > Â
                              > >
                              > >
                              > > > If you have a reader writer you can copy the image and rewrite it
                              > > onto another card/ If your using Windows you will have to use the
                              > > imager reference in the RPI beginners guide/ I dont recalll the name
                              > > of the utility.
                              > >
                              > > > Â
                              > > > Â
                              > >
                              > >
                              > > > Rick
                              > > >
                              > > > From: William Liporace - WC2L
                              > >
                              > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                              > > > Sent: Sunday, January 6, 2013 9:49 AM
                              > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                              > > >
                              > >
                              > > > Â
                              > >
                              > > > Is there an easy way to copy SD cards?? Do you create an image or
                              > > can copy the files from one to another??
                              > > >
                              > > > TNX Will WC2L
                              > > >
                              > >
                              > >
                              > >
                              > >
                              > >
                              > >
                              > > --
                              > > -=jeff=-
                              > >
                              > >
                              > >
                              > >
                              > >
                              > >
                              > >
                              > >
                              >


                            • John B. Cundiff Jr.
                              From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Andy Sent: Thursday, January 10, 2013 2:20 PM To:
                              Message 14 of 25 , Jan 10, 2013
                              • 0 Attachment

                                 

                                 

                                From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Andy
                                Sent: Thursday, January 10, 2013 2:20 PM
                                To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                Subject: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                                 

                                 

                                i have a  SD card with the   Linux OS  needed for  the Pi...but I do not know how to  load the  Software defined radio software onto the SD card 

                                so I can use the SDR   Dongle I bought that has the  Radio receiver circuits in it .

                                 



                                John:

                                Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                                image on them. http://www.mcmelectronics.com/product/83-14268

                                Don't believe you can boot from a dongle,maybe some one else knows for sure. You boot from the SD slot built into the Pi.

                                This place has lots of accessories for the Pi. I have no connection to them other than buying from them a few times.

                                Later Andy (AC2HE)

                                --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr" wrote:
                                >
                                >
                                >
                                >
                                > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                > programs I can use with a Realtec Dongle .
                                > that I can use with the Raspberry Pi computer.
                                > I have been unable to make my own SD cards that will work.
                                >
                                > jbcundiffjr@...
                                >
                                >
                                >
                                > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                >
                                > >
                                > > Awesome!! Thank you for the lesson!
                                > >
                                > >
                                > >
                                > > Will WC2L
                                > >
                                > >
                                > >
                                > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                > > ] On Behalf Of Jeff Francis™
                                > > Sent: Wednesday, January 09, 2013 7:19 PM
                                > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                > >
                                > >
                                > >
                                > >
                                > >
                                > > While dd works great, take a minute and install dd_rescue (if
                                > > you're on a Debian-derived linux, do "sudo apt-get install
                                > > dd_rescue"). dd_rescue gives you progress updates and time
                                > > estimates. Functionally, it's the same, it just gives more feedback.
                                > >
                                > >
                                > >
                                > > To copy an image off of an SD card, you'll need to know which
                                > > device it is and what you'd like to name the image file on your hard
                                > > drive. Assume that the SD card is /dev/sdb and you want to name the
                                > > image file on your hard drive foo.dd. Run the following command:
                                > >
                                > >
                                > >
                                > > sudo dd_rescue /dev/sdb foo.dd
                                > >
                                > >
                                > >
                                > > or if you prefer dd:
                                > >
                                > >
                                > >
                                > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                > >
                                > >
                                > >
                                > > After a wait, you'll have an image of your SD card on your hard
                                > > drive called foo.dd. That file is typically very compressable. Use
                                > > bzip2 -9 for maximum compression.
                                > >
                                > >
                                > >
                                > > To write an image onto an SD card, it's very similar. Again,
                                > > assume sdb and foo.dd:
                                > >
                                > >
                                > >
                                > > sudo dd_rescue foo.dd /dev/sdb
                                > >
                                > > or
                                > >
                                > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                > >
                                > >
                                > >
                                > > Note that you shouldn't guess what disk device the card is. If
                                > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                > > hard drive rather than your SD card. Errors are dangerous!
                                > >
                                > >
                                > >
                                > > If you have two SD card readers in your machine (say sdb and sdc),
                                > > you can copy directly from one card to the other:
                                > >
                                > >
                                > >
                                > > sudo dd_rescue /dev/sdb /dev/sdc
                                > >
                                > > or
                                > >
                                > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                > >
                                > >
                                > >
                                > > This doesn't work for moving data between cards of different
                                > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                > > anything, other than you'll only use half of the space on the 8gig
                                > > card unless/until you expand the filesystem. No harm done. On the
                                > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                                > > cause yourself endless grief. First of all, there's no guarantee
                                > > that even if there's less than 4gig of data on the 8gig image that
                                > > the data is at the "bottom" of the filesystem. Your system will
                                > > also see an 8gig partition on a 4gig device, causing all sorts of
                                > > headaches. The solution here is to mount the source device (for
                                > > example, on /media/deadbeef) then partition, format, and mount the
                                > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                                > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                                > > contents with something like rsync ("sudo rsync -av --delete /media/
                                > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                                > > are, you're guaranteed to hork things permanently). Using rsync
                                > > will work so long as the data from the larger card will fit in the
                                > > available space on the smaller card. If you don't have rsync on
                                > > your system, you can do it the way we did it in the old days:
                                > >
                                > >
                                > >
                                > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                > >
                                > >
                                > >
                                > > But that's pretty old-school. :D Doing a recursive copy with cp
                                > > may or may not preserve ownership and permissions, depending on the
                                > > flags you provide. And it won't copy special files (ie, files in /
                                > > dev/, /proc/, etc).
                                > >
                                > >
                                > >
                                > >
                                > >
                                > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                > >
                                > >
                                > >
                                > > If you are running Linux use dd:
                                > > man dd for help.
                                > >
                                > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                                > > >
                                > > > It's Win32diskimager (winimage for short):Â https://launchpad.net/win32-image-writer/+download
                                > >
                                > >
                                > > >
                                > > > You can use "gparted" in another linux box to resize up & down.
                                > > >
                                > > > However I've noticed so far that even if you shrink the partition
                                > >
                                > > > can't get smaller image.   The Winimage makes image of the
                                > > entire
                                > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                                > >
                                > >
                                > > > this more as would like to shrink some down again. (for storage)
                                > > >
                                > > > " sudo apt-get gparted" or use synaptic package manager.
                                > > > Must use different machine,& of course get the right partition!:)
                                > > >
                                > > >
                                > >
                                > > > Â
                                > >
                                > >
                                > > > Later,Andy (AC2HE)
                                > > >
                                > > >
                                > > > ________________________________
                                > > > From: Rick Nicholson
                                > >
                                > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                                > >
                                > > > Sent: Monday, January 7, 2013 1:51 AM
                                > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                > > >
                                > > >
                                > >
                                > > > Â
                                > > > Will
                                > > > Â
                                > >
                                > >
                                > > > If you have a reader writer you can copy the image and rewrite it
                                > > onto another card/ If your using Windows you will have to use the
                                > > imager reference in the RPI beginners guide/ I dont recalll the name
                                > > of the utility.
                                > >
                                > > > Â
                                > > > Â
                                > >
                                > >
                                > > > Rick
                                > > >
                                > > > From: William Liporace - WC2L
                                > >
                                > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                > > > Sent: Sunday, January 6, 2013 9:49 AM
                                > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                > > >
                                > >
                                > > > Â
                                > >
                                > > > Is there an easy way to copy SD cards?? Do you create an image or
                                > > can copy the files from one to another??
                                > > >
                                > > > TNX Will WC2L
                                > > >
                                > >
                                > >
                                > >
                                > >
                                > >
                                > >
                                > > --
                                > > -=jeff=-
                                > >
                                > >
                                > >
                                > >
                                > >
                                > >
                                > >
                                > >
                                >

                              • Alan Melia
                                Farnell ( & CPC) sell programmed SD cards in UK (Premier in US??) these are 4G but if you are going to use this you need to be able to update the OS regularly
                                Message 15 of 25 , Jan 10, 2013
                                • 0 Attachment
                                  Farnell ( & CPC) sell programmed SD cards in UK (Premier in US??) these are
                                  4G but if you are going to use this you need to be able to update the OS
                                  regularly things are changing all the time. The preprogrammed cards my not
                                  be the latest Rasbian though you may be able to update on line once working.
                                  Alan
                                  G3NYK
                                  ----- Original Message -----
                                  From: "Andy" <oldtech60@...>
                                  To: <Raspberry_Pi_4-Ham_RADIO@yahoogroups.com>
                                  Sent: Thursday, January 10, 2013 10:19 PM
                                  Subject: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??




                                  John:

                                  Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                                  image on them. http://www.mcmelectronics.com/product/83-14268

                                  Don't believe you can boot from a dongle,maybe some one else knows for sure.
                                  You boot from the SD slot built into the Pi.

                                  This place has lots of accessories for the Pi. I have no connection to them
                                  other than buying from them a few times.

                                  Later Andy (AC2HE)


                                  --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr"
                                  wrote:
                                  >
                                  >
                                  >
                                  >
                                  > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                  > programs I can use with a Realtec Dongle .
                                  > that I can use with the Raspberry Pi computer.
                                  > I have been unable to make my own SD cards that will work.
                                  >
                                  > jbcundiffjr@...
                                  >
                                  >
                                  >
                                  > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                  >
                                  > >
                                  > > Awesome!! Thank you for the lesson!
                                  > >
                                  > >
                                  > >
                                  > > Will WC2L
                                  > >
                                  > >
                                  > >
                                  > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                  > > [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                  > > ] On Behalf Of Jeff FrancisT
                                  > > Sent: Wednesday, January 09, 2013 7:19 PM
                                  > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                  > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > > While dd works great, take a minute and install dd_rescue (if
                                  > > you're on a Debian-derived linux, do "sudo apt-get install
                                  > > dd_rescue"). dd_rescue gives you progress updates and time
                                  > > estimates. Functionally, it's the same, it just gives more feedback.
                                  > >
                                  > >
                                  > >
                                  > > To copy an image off of an SD card, you'll need to know which
                                  > > device it is and what you'd like to name the image file on your hard
                                  > > drive. Assume that the SD card is /dev/sdb and you want to name the
                                  > > image file on your hard drive foo.dd. Run the following command:
                                  > >
                                  > >
                                  > >
                                  > > sudo dd_rescue /dev/sdb foo.dd
                                  > >
                                  > >
                                  > >
                                  > > or if you prefer dd:
                                  > >
                                  > >
                                  > >
                                  > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                  > >
                                  > >
                                  > >
                                  > > After a wait, you'll have an image of your SD card on your hard
                                  > > drive called foo.dd. That file is typically very compressable. Use
                                  > > bzip2 -9 for maximum compression.
                                  > >
                                  > >
                                  > >
                                  > > To write an image onto an SD card, it's very similar. Again,
                                  > > assume sdb and foo.dd:
                                  > >
                                  > >
                                  > >
                                  > > sudo dd_rescue foo.dd /dev/sdb
                                  > >
                                  > > or
                                  > >
                                  > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                  > >
                                  > >
                                  > >
                                  > > Note that you shouldn't guess what disk device the card is. If
                                  > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                  > > hard drive rather than your SD card. Errors are dangerous!
                                  > >
                                  > >
                                  > >
                                  > > If you have two SD card readers in your machine (say sdb and sdc),
                                  > > you can copy directly from one card to the other:
                                  > >
                                  > >
                                  > >
                                  > > sudo dd_rescue /dev/sdb /dev/sdc
                                  > >
                                  > > or
                                  > >
                                  > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                  > >
                                  > >
                                  > >
                                  > > This doesn't work for moving data between cards of different
                                  > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                  > > anything, other than you'll only use half of the space on the 8gig
                                  > > card unless/until you expand the filesystem. No harm done. On the
                                  > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                                  > > cause yourself endless grief. First of all, there's no guarantee
                                  > > that even if there's less than 4gig of data on the 8gig image that
                                  > > the data is at the "bottom" of the filesystem. Your system will
                                  > > also see an 8gig partition on a 4gig device, causing all sorts of
                                  > > headaches. The solution here is to mount the source device (for
                                  > > example, on /media/deadbeef) then partition, format, and mount the
                                  > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                                  > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                                  > > contents with something like rsync ("sudo rsync -av --delete /media/
                                  > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                                  > > are, you're guaranteed to hork things permanently). Using rsync
                                  > > will work so long as the data from the larger card will fit in the
                                  > > available space on the smaller card. If you don't have rsync on
                                  > > your system, you can do it the way we did it in the old days:
                                  > >
                                  > >
                                  > >
                                  > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                  > >
                                  > >
                                  > >
                                  > > But that's pretty old-school. :D Doing a recursive copy with cp
                                  > > may or may not preserve ownership and permissions, depending on the
                                  > > flags you provide. And it won't copy special files (ie, files in /
                                  > > dev/, /proc/, etc).
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                  > >
                                  > >
                                  > >
                                  > > If you are running Linux use dd:
                                  > > man dd for help.
                                  > >
                                  > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                                  > > >
                                  > > > It's Win32diskimager (winimage for short):Â
                                  > > > https://launchpad.net/win32-image-writer/+download
                                  > >
                                  > >
                                  > > >
                                  > > > You can use "gparted" in another linux box to resize up & down.
                                  > > >
                                  > > > However I've noticed so far that even if you shrink the partition
                                  > >
                                  > > > can't get smaller image.   The Winimage makes image of the
                                  > > entire
                                  > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                                  > >
                                  > >
                                  > > > this more as would like to shrink some down again. (for storage)
                                  > > >
                                  > > > " sudo apt-get gparted" or use synaptic package manager.
                                  > > > Must use different machine,& of course get the right partition!:)
                                  > > >
                                  > > >
                                  > >
                                  > > > Â
                                  > >
                                  > >
                                  > > > Later,Andy (AC2HE)
                                  > > >
                                  > > >
                                  > > > ________________________________
                                  > > > From: Rick Nicholson
                                  > >
                                  > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                                  > >
                                  > > > Sent: Monday, January 7, 2013 1:51 AM
                                  > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                  > > >
                                  > > >
                                  > >
                                  > > > Â
                                  > > > Will
                                  > > > Â
                                  > >
                                  > >
                                  > > > If you have a reader writer you can copy the image and rewrite it
                                  > > onto another card/ If your using Windows you will have to use the
                                  > > imager reference in the RPI beginners guide/ I dont recalll the name
                                  > > of the utility.
                                  > >
                                  > > > Â
                                  > > > Â
                                  > >
                                  > >
                                  > > > Rick
                                  > > >
                                  > > > From: William Liporace - WC2L
                                  > >
                                  > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                  > > > Sent: Sunday, January 6, 2013 9:49 AM
                                  > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                  > > >
                                  > >
                                  > > > Â
                                  > >
                                  > > > Is there an easy way to copy SD cards?? Do you create an image or
                                  > > can copy the files from one to another??
                                  > > >
                                  > > > TNX Will WC2L
                                  > > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > > --
                                  > > -=jeff=-
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  > >
                                  >




                                  ------------------------------------

                                  Yahoo! Groups Links
                                • Rick Simpson
                                  I think what John is talking about as a SDR dongle is a DVB-T stick that many people are now using as an inexpensive ($15) wide-band SDR receiver that puts
                                  Message 16 of 25 , Jan 10, 2013
                                  • 0 Attachment
                                    I think what John is talking about as a "SDR dongle" is a DVB-T stick that many people are now using as an inexpensive ($15) wide-band SDR receiver that puts out the SDR I and Q signals on the USB connector. They connect the I and Q signals to a PC sound card and use conventional SDR software on the PC to process and display the signals. I doubt that a Pi has sufficient processing power to emulate the capabilities of a sound card and also run the SDR software necessary to complete the processing and run the display and controls. If such a program could be written for the Pi there would be a huge demand for the SD card with Linux and the SDR program all properly configured for use with the dongle.
                                     
                                    Rick
                                    K3IND
                                     
                                    --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr"
                                    wrote:
                                    >
                                    >
                                    >
                                    >
                                    > I wood
                                    like to buy a SD card pre loaded with Linux OS and SDR
                                    > programs I can
                                    use with a Realtec Dongle .
                                    > that I can use with the Raspberry Pi
                                    computer.
                                    > I have been unable to make my own SD cards that will
                                    work.
                                    >
                                    > jbcundiffjr@...
                                    >
                                    >
                                    >
                                    > On Jan 9,
                                    2013, at 7:48 PM, William Liporace - WC2L wrote:
                                    >
                                    > >
                                    > > Awesome!! Thank you for the lesson!
                                    > >
                                    > >
                                    > >
                                    > > Will WC2L
                                    > >
                                    > >
                                    > >
                                    > >
                                    From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                    > > [mailto:
                                    href="mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com">Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                    > > ] On Behalf Of Jeff FrancisT
                                    > > Sent: Wednesday, January 09, 2013
                                    7:19 PM
                                    > > To:
                                    href="mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com">Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                    > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > > While dd
                                    works great, take a minute and install dd_rescue (if
                                    > > you're on a
                                    Debian-derived linux, do "sudo apt-get install
                                    > > dd_rescue").
                                    dd_rescue gives you progress updates and time
                                    > > estimates.
                                    Functionally, it's the same, it just gives more feedback.
                                    > >
                                    > >
                                    > >
                                    > > To copy an image off of an SD card, you'll need
                                    to know which
                                    > > device it is and what you'd like to name the image
                                    file on your hard
                                    > > drive. Assume that the SD card is /dev/sdb and
                                    you want to name the
                                    > > image file on your hard drive foo.dd. Run the
                                    following command:
                                    > >
                                    > >
                                    > >
                                    > > sudo
                                    dd_rescue /dev/sdb foo.dd
                                    > >
                                    > >
                                    > >
                                    > > or
                                    if you prefer dd:
                                    > >
                                    > >
                                    > >
                                    > > sudo dd
                                    if=/dev/sdb of=foo.dd bs=4k
                                    > >
                                    > >
                                    > >
                                    > >
                                    After a wait, you'll have an image of your SD card on your hard
                                    > >
                                    drive called foo.dd. That file is typically very compressable. Use
                                    > >
                                    bzip2 -9 for maximum compression.
                                    > >
                                    > >
                                    > >
                                    > > To write an image onto an SD card, it's very similar. Again,
                                    > >
                                    assume sdb and foo.dd:
                                    > >
                                    > >
                                    > >
                                    > > sudo
                                    dd_rescue foo.dd /dev/sdb
                                    > >
                                    > > or
                                    > >
                                    > >
                                    sudo dd if=foo.dd of=/dev/sdb bs=4k
                                    > >
                                    > >
                                    > >
                                    > > Note that you shouldn't guess what disk device the card is.
                                    If
                                    > > you guess wrong (ie, /dev/sda), you'll write the image onto
                                    your
                                    > > hard drive rather than your SD card. Errors are
                                    dangerous!
                                    > >
                                    > >
                                    > >
                                    > > If you have two
                                    SD card readers in your machine (say sdb and sdc),
                                    > > you can copy
                                    directly from one card to the other:
                                    > >
                                    > >
                                    > >
                                    > > sudo dd_rescue /dev/sdb /dev/sdc
                                    > >
                                    > >
                                    or
                                    > >
                                    > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                    > >
                                    > >
                                    > >
                                    > > This doesn't work for moving data
                                    between cards of different
                                    > > sizes. If you dd a 4gig image onto an
                                    8gig, you won't hurt
                                    > > anything, other than you'll only use half of
                                    the space on the 8gig
                                    > > card unless/until you expand the filesystem.
                                    No harm done. On the
                                    > > other hand, if you try to dd an 8gig image
                                    onto a 4gig card, you can
                                    > > cause yourself endless grief. First of
                                    all, there's no guarantee
                                    > > that even if there's less than 4gig of
                                    data on the 8gig image that
                                    > > the data is at the "bottom" of the
                                    filesystem. Your system will
                                    > > also see an 8gig partition on a 4gig
                                    device, causing all sorts of
                                    > > headaches. The solution here is to
                                    mount the source device (for
                                    > > example, on /media/deadbeef) then
                                    partition, format, and mount the
                                    > > destination device ("sudo fdisk
                                    /dev/sd?", "sudo mkfs.ext? /dev/
                                    > > sd?", then "sudo mount /dev/sd??
                                    /mnt"). Then you can copy the
                                    > > contents with something like rsync
                                    ("sudo rsync -av --delete /media/
                                    > > deadbeef/ /mnt/"). Again, don't
                                    just guess the values where the "?"
                                    > > are, you're guaranteed to hork
                                    things permanently). Using rsync
                                    > > will work so long as the data from
                                    the larger card will fit in the
                                    > > available space on the smaller
                                    card. If you don't have rsync on
                                    > > your system, you can do it the way
                                    we did it in the old days:
                                    > >
                                    > >
                                    > >
                                    > >
                                    cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                    > >
                                    > >
                                    > >
                                    > > But that's pretty old-school. :D
                                    Doing a recursive copy with cp
                                    > > may or may not preserve ownership
                                    and permissions, depending on the
                                    > > flags you provide. And it won't
                                    copy special files (ie, files in /
                                    > > dev/, /proc/, etc).
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > > On Wed,
                                    Jan 9, 2013 at 10:20 AM, John wrote:
                                    > >
                                    > >
                                    > >
                                    > > If you are running Linux use dd:
                                    > > man dd for
                                    help.
                                    > >
                                    > > --- In
                                    href="mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com">Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                                    > > >
                                    > > > It's Win32diskimager (winimage
                                    for short):Â
                                    > > >
                                    href="https://launchpad.net/win32-image-writer/+download">https://launchpad.net/win32-image-writer/+download
                                    > >
                                    > >
                                    > > >
                                    > > > You can use "gparted" in
                                    another linux box to resize up & down.
                                    > > >
                                    > > >
                                    However I've noticed so far that even if you shrink the partition
                                    > >
                                    > > > can't get smaller image.   The Winimage makes image of
                                    the
                                    > > entire
                                    > > > drive. IE: if it's an 8 gig that's
                                    what we get. Will be pursuing
                                    > >
                                    > >
                                    > > > this
                                    more as would like to shrink some down again. (for storage)
                                    > > >
                                    > > > " sudo apt-get gparted" or use synaptic package
                                    manager.
                                    > > > Must use different machine,& of course get the
                                    right partition!:)
                                    > > >
                                    > > >
                                    > >
                                    > > > Â
                                    > >
                                    > >
                                    > > > Later,Andy (AC2HE)
                                    > > >
                                    > > >
                                    > > >
                                    ________________________________
                                    > > > From: Rick Nicholson
                                    > >
                                    > > > To: "
                                    href="mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com">Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                                    > >
                                    > > > Sent: Monday, January 7, 2013 1:51 AM
                                    > > >
                                    Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                    > > >
                                    > > >
                                    > >
                                    > > > Â
                                    > > >
                                    Will
                                    > > > Â
                                    > >
                                    > >
                                    > > > If you have
                                    a reader writer you can copy the image and rewrite it
                                    > > onto another
                                    card/ If your using Windows you will have to use the
                                    > > imager
                                    reference in the RPI beginners guide/ I dont recalll the name
                                    > > of
                                    the utility.
                                    > >
                                    > > > Â
                                    > > > Â
                                    > >
                                    > >
                                    > > > Rick
                                    > > >
                                    > > >
                                    From: William Liporace - WC2L
                                    > >
                                    > > > To:
                                    href="mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com">Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                    > > > Sent: Sunday, January 6, 2013 9:49 AM
                                    > > > Subject:
                                    [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                    > > >
                                    > >
                                    > > > Â
                                    > >
                                    > > > Is there an easy way to
                                    copy SD cards?? Do you create an image or
                                    > > can copy the files from
                                    one to another??
                                    > > >
                                    > > > TNX Will WC2L
                                    > > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > > --
                                    > > -=jeff=-
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    > >
                                    >

                                    ------------------------------------

                                    Yahoo! Groups Links

                                  • John B. Cundiff Jr
                                    I already have one of these SD cards with the Linux OS on it ...and it workls fine. I can cruise the internet wit it BUT . it does not have the software I
                                    Message 17 of 25 , Jan 11, 2013
                                    • 0 Attachment
                                      I already have one of these SD cards  with the Linux OS on it ...and it workls fine.  I can cruise the internet wit it 
                                        BUT . it does not have the software I need to operate the Realtec Dongle receiver .
                                      So I can not  run Software Defined Radio programs  I do not know how to load onto the SD card..

                                      On Jan 10, 2013, at 8:14 PM, Alan Melia wrote:

                                       

                                      Farnell ( & CPC) sell programmed SD cards in UK (Premier in US??) these are
                                      4G but if you are going to use this you need to be able to update the OS
                                      regularly things are changing all the time. The preprogrammed cards my not
                                      be the latest Rasbian though you may be able to update on line once working.
                                      Alan
                                      G3NYK
                                      ----- Original Message -----
                                      From: "Andy" oldtech60@...>
                                      To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com>
                                      Sent: Thursday, January 10, 2013 10:19 PM
                                      Subject: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                                      John:

                                      Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                                      image on them. http://www.mcmelectronics.com/product/83-14268

                                      Don't believe you can boot from a dongle,maybe some one else knows for sure.
                                      You boot from the SD slot built into the Pi.

                                      This place has lots of accessories for the Pi. I have no connection to them
                                      other than buying from them a few times.

                                      Later Andy (AC2HE)

                                      --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr"
                                      wrote:
                                      >
                                      >
                                      >
                                      >
                                      > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                      > programs I can use with a Realtec Dongle .
                                      > that I can use with the Raspberry Pi computer.
                                      > I have been unable to make my own SD cards that will work.
                                      >
                                      > jbcundiffjr@...
                                      >
                                      >
                                      >
                                      > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                      >
                                      > >
                                      > > Awesome!! Thank you for the lesson!
                                      > >
                                      > >
                                      > >
                                      > > Will WC2L
                                      > >
                                      > >
                                      > >
                                      > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                      > > [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                      > > ] On Behalf Of Jeff FrancisT
                                      > > Sent: Wednesday, January 09, 2013 7:19 PM
                                      > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                      > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > > While dd works great, take a minute and install dd_rescue (if
                                      > > you're on a Debian-derived linux, do "sudo apt-get install
                                      > > dd_rescue"). dd_rescue gives you progress updates and time
                                      > > estimates. Functionally, it's the same, it just gives more feedback.
                                      > >
                                      > >
                                      > >
                                      > > To copy an image off of an SD card, you'll need to know which
                                      > > device it is and what you'd like to name the image file on your hard
                                      > > drive. Assume that the SD card is /dev/sdb and you want to name the
                                      > > image file on your hard drive foo.dd. Run the following command:
                                      > >
                                      > >
                                      > >
                                      > > sudo dd_rescue /dev/sdb foo.dd
                                      > >
                                      > >
                                      > >
                                      > > or if you prefer dd:
                                      > >
                                      > >
                                      > >
                                      > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                      > >
                                      > >
                                      > >
                                      > > After a wait, you'll have an image of your SD card on your hard
                                      > > drive called foo.dd. That file is typically very compressable. Use
                                      > > bzip2 -9 for maximum compression.
                                      > >
                                      > >
                                      > >
                                      > > To write an image onto an SD card, it's very similar. Again,
                                      > > assume sdb and foo.dd:
                                      > >
                                      > >
                                      > >
                                      > > sudo dd_rescue foo.dd /dev/sdb
                                      > >
                                      > > or
                                      > >
                                      > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                      > >
                                      > >
                                      > >
                                      > > Note that you shouldn't guess what disk device the card is. If
                                      > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                      > > hard drive rather than your SD card. Errors are dangerous!
                                      > >
                                      > >
                                      > >
                                      > > If you have two SD card readers in your machine (say sdb and sdc),
                                      > > you can copy directly from one card to the other:
                                      > >
                                      > >
                                      > >
                                      > > sudo dd_rescue /dev/sdb /dev/sdc
                                      > >
                                      > > or
                                      > >
                                      > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                      > >
                                      > >
                                      > >
                                      > > This doesn't work for moving data between cards of different
                                      > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                      > > anything, other than you'll only use half of the space on the 8gig
                                      > > card unless/until you expand the filesystem. No harm done. On the
                                      > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                                      > > cause yourself endless grief. First of all, there's no guarantee
                                      > > that even if there's less than 4gig of data on the 8gig image that
                                      > > the data is at the "bottom" of the filesystem. Your system will
                                      > > also see an 8gig partition on a 4gig device, causing all sorts of
                                      > > headaches. The solution here is to mount the source device (for
                                      > > example, on /media/deadbeef) then partition, format, and mount the
                                      > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                                      > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                                      > > contents with something like rsync ("sudo rsync -av --delete /media/
                                      > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                                      > > are, you're guaranteed to hork things permanently). Using rsync
                                      > > will work so long as the data from the larger card will fit in the
                                      > > available space on the smaller card. If you don't have rsync on
                                      > > your system, you can do it the way we did it in the old days:
                                      > >
                                      > >
                                      > >
                                      > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                      > >
                                      > >
                                      > >
                                      > > But that's pretty old-school. :D Doing a recursive copy with cp
                                      > > may or may not preserve ownership and permissions, depending on the
                                      > > flags you provide. And it won't copy special files (ie, files in /
                                      > > dev/, /proc/, etc).
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                      > >
                                      > >
                                      > >
                                      > > If you are running Linux use dd:
                                      > > man dd for help.
                                      > >
                                      > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                                      > > >
                                      > > > It's Win32diskimager (winimage for short):Â
                                      > > > https://launchpad.net/win32-image-writer/+download
                                      > >
                                      > >
                                      > > >
                                      > > > You can use "gparted" in another linux box to resize up & down.
                                      > > >
                                      > > > However I've noticed so far that even if you shrink the partition
                                      > >
                                      > > > can't get smaller image.   The Winimage makes image of the
                                      > > entire
                                      > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                                      > >
                                      > >
                                      > > > this more as would like to shrink some down again. (for storage)
                                      > > >
                                      > > > " sudo apt-get gparted" or use synaptic package manager.
                                      > > > Must use different machine,& of course get the right partition!:)
                                      > > >
                                      > > >
                                      > >
                                      > > > Â
                                      > >
                                      > >
                                      > > > Later,Andy (AC2HE)
                                      > > >
                                      > > >
                                      > > > ________________________________
                                      > > > From: Rick Nicholson
                                      > >
                                      > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                                      > >
                                      > > > Sent: Monday, January 7, 2013 1:51 AM
                                      > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                      > > >
                                      > > >
                                      > >
                                      > > > Â
                                      > > > Will
                                      > > > Â
                                      > >
                                      > >
                                      > > > If you have a reader writer you can copy the image and rewrite it
                                      > > onto another card/ If your using Windows you will have to use the
                                      > > imager reference in the RPI beginners guide/ I dont recalll the name
                                      > > of the utility.
                                      > >
                                      > > > Â
                                      > > > Â
                                      > >
                                      > >
                                      > > > Rick
                                      > > >
                                      > > > From: William Liporace - WC2L
                                      > >
                                      > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                      > > > Sent: Sunday, January 6, 2013 9:49 AM
                                      > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                      > > >
                                      > >
                                      > > > Â
                                      > >
                                      > > > Is there an easy way to copy SD cards?? Do you create an image or
                                      > > can copy the files from one to another??
                                      > > >
                                      > > > TNX Will WC2L
                                      > > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > > --
                                      > > -=jeff=-
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      > >
                                      >

                                      ------------------------------------

                                      Yahoo! Groups Links


                                    • John B. Cundiff Jr
                                      This is exactly what I am talking about . Can some one load a SD card with the OS and Software I need to do this ? Then sell it to me ? I have tried but do
                                      Message 18 of 25 , Jan 11, 2013
                                      • 0 Attachment
                                        This is exactly what I am talking about .
                                        Can some one load a SD card with the  OS and Software  I need to do this ?

                                        Then sell it to me ? 
                                         I have tried  but do not understand  Linux  well enough to do it .
                                        I bought a preloaded  SD card with the Linux OS on it but do not  know how to add the SDR software I also need .
                                        I have a USV  3.5 inch floppy drive and I have several  USB memory sticks.
                                        Could the SDR software be  loaded onto  either of them and  then run ?

                                        John

                                        On Jan 10, 2013, at 11:54 PM, Rick Simpson wrote:

                                         

                                        I think what John is talking about as a "SDR dongle" is a DVB-T stick that many people are now using as an inexpensive ($15) wide-band SDR receiver that puts out the SDR I and Q signals on the USB connector. They connect the I and Q signals to a PC sound card and use conventional SDR software on the PC to process and display the signals. I doubt that a Pi has sufficient processing power to emulate the capabilities of a sound card and also run the SDR software necessary to complete the processing and run the display and controls. If such a program could be written for the Pi there would be a huge demand for the SD card with Linux and the SDR program all properly configured for use with the dongle.
                                         
                                        Rick
                                        K3IND
                                         
                                        --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr"
                                        wrote:
                                        >
                                        >
                                        >
                                        >
                                        > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                        > programs I can use with a Realtec Dongle .
                                        > that I can use with the Raspberry Pi computer.
                                        > I have been unable to make my own SD cards that will work.
                                        >
                                        > jbcundiffjr@...
                                        >
                                        >
                                        >
                                        > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                        >
                                        > >
                                        > > Awesome!! Thank you for the lesson!
                                        > >
                                        > >
                                        > >
                                        > > Will WC2L
                                        > >
                                        > >
                                        > >
                                        > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                        > > [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                        > > ] On Behalf Of Jeff FrancisT
                                        > > Sent: Wednesday, January 09, 2013 7:19 PM
                                        > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                        > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > > While dd works great, take a minute and install dd_rescue (if
                                        > > you're on a Debian-derived linux, do "sudo apt-get install
                                        > > dd_rescue"). dd_rescue gives you progress updates and time
                                        > > estimates. Functionally, it's the same, it just gives more feedback.
                                        > >
                                        > >
                                        > >
                                        > > To copy an image off of an SD card, you'll need to know which
                                        > > device it is and what you'd like to name the image file on your hard
                                        > > drive. Assume that the SD card is /dev/sdb and you want to name the
                                        > > image file on your hard drive foo.dd. Run the following command:
                                        > >
                                        > >
                                        > >
                                        > > sudo dd_rescue /dev/sdb foo.dd
                                        > >
                                        > >
                                        > >
                                        > > or if you prefer dd:
                                        > >
                                        > >
                                        > >
                                        > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                        > >
                                        > >
                                        > >
                                        > > After a wait, you'll have an image of your SD card on your hard
                                        > > drive called foo.dd. That file is typically very compressable. Use
                                        > > bzip2 -9 for maximum compression.
                                        > >
                                        > >
                                        > >
                                        > > To write an image onto an SD card, it's very similar. Again,
                                        > > assume sdb and foo.dd:
                                        > >
                                        > >
                                        > >
                                        > > sudo dd_rescue foo.dd /dev/sdb
                                        > >
                                        > > or
                                        > >
                                        > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                        > >
                                        > >
                                        > >
                                        > > Note that you shouldn't guess what disk device the card is. If
                                        > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                        > > hard drive rather than your SD card. Errors are dangerous!
                                        > >
                                        > >
                                        > >
                                        > > If you have two SD card readers in your machine (say sdb and sdc),
                                        > > you can copy directly from one card to the other:
                                        > >
                                        > >
                                        > >
                                        > > sudo dd_rescue /dev/sdb /dev/sdc
                                        > >
                                        > > or
                                        > >
                                        > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                        > >
                                        > >
                                        > >
                                        > > This doesn't work for moving data between cards of different
                                        > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                        > > anything, other than you'll only use half of the space on the 8gig
                                        > > card unless/until you expand the filesystem. No harm done. On the
                                        > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                                        > > cause yourself endless grief. First of all, there's no guarantee
                                        > > that even if there's less than 4gig of data on the 8gig image that
                                        > > the data is at the "bottom" of the filesystem. Your system will
                                        > > also see an 8gig partition on a 4gig device, causing all sorts of
                                        > > headaches. The solution here is to mount the source device (for
                                        > > example, on /media/deadbeef) then partition, format, and mount the
                                        > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                                        > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                                        > > contents with something like rsync ("sudo rsync -av --delete /media/
                                        > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                                        > > are, you're guaranteed to hork things permanently). Using rsync
                                        > > will work so long as the data from the larger card will fit in the
                                        > > available space on the smaller card. If you don't have rsync on
                                        > > your system, you can do it the way we did it in the old days:
                                        > >
                                        > >
                                        > >
                                        > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                        > >
                                        > >
                                        > >
                                        > > But that's pretty old-school. :D Doing a recursive copy with cp
                                        > > may or may not preserve ownership and permissions, depending on the
                                        > > flags you provide. And it won't copy special files (ie, files in /
                                        > > dev/, /proc/, etc).
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                        > >
                                        > >
                                        > >
                                        > > If you are running Linux use dd:
                                        > > man dd for help.
                                        > >
                                        > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                                        > > >
                                        > > > It's Win32diskimager (winimage for short):Â
                                        > > > https://launchpad.net/win32-image-writer/+download
                                        > >
                                        > >
                                        > > >
                                        > > > You can use "gparted" in another linux box to resize up & down.
                                        > > >
                                        > > > However I've noticed so far that even if you shrink the partition
                                        > >
                                        > > > can't get smaller image.   The Winimage makes image of the
                                        > > entire
                                        > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                                        > >
                                        > >
                                        > > > this more as would like to shrink some down again. (for storage)
                                        > > >
                                        > > > " sudo apt-get gparted" or use synaptic package manager.
                                        > > > Must use different machine,& of course get the right partition!:)
                                        > > >
                                        > > >
                                        > >
                                        > > > Â
                                        > >
                                        > >
                                        > > > Later,Andy (AC2HE)
                                        > > >
                                        > > >
                                        > > > ________________________________
                                        > > > From: Rick Nicholson
                                        > >
                                        > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                                        > >
                                        > > > Sent: Monday, January 7, 2013 1:51 AM
                                        > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                        > > >
                                        > > >
                                        > >
                                        > > > Â
                                        > > > Will
                                        > > > Â
                                        > >
                                        > >
                                        > > > If you have a reader writer you can copy the image and rewrite it
                                        > > onto another card/ If your using Windows you will have to use the
                                        > > imager reference in the RPI beginners guide/ I dont recalll the name
                                        > > of the utility.
                                        > >
                                        > > > Â
                                        > > > Â
                                        > >
                                        > >
                                        > > > Rick
                                        > > >
                                        > > > From: William Liporace - WC2L
                                        > >
                                        > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                        > > > Sent: Sunday, January 6, 2013 9:49 AM
                                        > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                        > > >
                                        > >
                                        > > > Â
                                        > >
                                        > > > Is there an easy way to copy SD cards?? Do you create an image or
                                        > > can copy the files from one to another??
                                        > > >
                                        > > > TNX Will WC2L
                                        > > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > > --
                                        > > -=jeff=-
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        > >
                                        >

                                        ------------------------------------

                                        Yahoo! Groups Links



                                      • John B. Cundiff Jr.
                                        Such programs have been written to run on the Pi and are available free on the internet . QST January edition shows how to do it on a PC. I just do not know
                                        Message 19 of 25 , Jan 11, 2013
                                        • 0 Attachment
                                          Such programs have been written  to run on the Pi and are available  free on the internet .
                                          QST  January  edition shows how to do it on a PC.

                                          I just do not know how to load them on a  SD card  that I will plug int the Pi.
                                          ...I  see  many  articles describing  how  many others  have already done this ..
                                          .I am not asking anyone to write anything or  create anything that does not 
                                          already exit.   These programs are feee for the Downloading .

                                          I  do not know how to  download it off the internet and install in on the SD card 
                                          with the  Linux OS  that it will run on.
                                          If some one could do this for me  and then sell it to me I wood be glad to pay them for their trouble.
                                          John

                                           
                                           
                                          On 01/11/13, Rick Simpson<goatguy101@...> wrote:
                                           
                                           

                                          I think what John is talking about as a "SDR dongle" is a DVB-T stick that many people are now using as an inexpensive ($15) wide-band SDR receiver that puts out the SDR I and Q signals on the USB connector. They connect the I and Q signals to a PC sound card and use conventional SDR software on the PC to process and display the signals. I doubt that a Pi has sufficient processing power to emulate the capabilities of a sound card and also run the SDR software necessary to complete the processing and run the display and controls. If such a program could be written for the Pi there would be a huge demand for the SD card with Linux and the SDR program all properly configured for use with the dongle.
                                           
                                          Rick
                                          K3IND
                                           
                                          --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, "John B. Cundiff Jr"
                                          wrote:
                                          >
                                          >
                                          >
                                          >
                                          > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                          > programs I can use with a Realtec Dongle .
                                          > that I can use with the Raspberry Pi computer.
                                          > I have been unable to make my own SD cards that will work.
                                          >
                                          > jbcundiffjr@...
                                          >
                                          >
                                          >
                                          > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                          >
                                          > >
                                          > > Awesome!! Thank you for the lesson!
                                          > >
                                          > >
                                          > >
                                          > > Will WC2L
                                          > >
                                          > >
                                          > >
                                          > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                          > > [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                          > > ] On Behalf Of Jeff FrancisT
                                          > > Sent: Wednesday, January 09, 2013 7:19 PM
                                          > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                          > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > > While dd works great, take a minute and install dd_rescue (if
                                          > > you're on a Debian-derived linux, do "sudo apt-get install
                                          > > dd_rescue"). dd_rescue gives you progress updates and time
                                          > > estimates. Functionally, it's the same, it just gives more feedback.
                                          > >
                                          > >
                                          > >
                                          > > To copy an image off of an SD card, you'll need to know which
                                          > > device it is and what you'd like to name the image file on your hard
                                          > > drive. Assume that the SD card is /dev/sdb and you want to name the
                                          > > image file on your hard drive foo.dd. Run the following command:
                                          > >
                                          > >
                                          > >
                                          > > sudo dd_rescue /dev/sdb foo.dd
                                          > >
                                          > >
                                          > >
                                          > > or if you prefer dd:
                                          > >
                                          > >
                                          > >
                                          > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                          > >
                                          > >
                                          > >
                                          > > After a wait, you'll have an image of your SD card on your hard
                                          > > drive called foo.dd. That file is typically very compressable. Use
                                          > > bzip2 -9 for maximum compression.
                                          > >
                                          > >
                                          > >
                                          > > To write an image onto an SD card, it's very similar. Again,
                                          > > assume sdb and foo.dd:
                                          > >
                                          > >
                                          > >
                                          > > sudo dd_rescue foo.dd /dev/sdb
                                          > >
                                          > > or
                                          > >
                                          > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                          > >
                                          > >
                                          > >
                                          > > Note that you shouldn't guess what disk device the card is. If
                                          > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                          > > hard drive rather than your SD card. Errors are dangerous!
                                          > >
                                          > >
                                          > >
                                          > > If you have two SD card readers in your machine (say sdb and sdc),
                                          > > you can copy directly from one card to the other:
                                          > >
                                          > >
                                          > >
                                          > > sudo dd_rescue /dev/sdb /dev/sdc
                                          > >
                                          > > or
                                          > >
                                          > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                          > >
                                          > >
                                          > >
                                          > > This doesn't work for moving data between cards of different
                                          > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                          > > anything, other than you'll only use half of the space on the 8gig
                                          > > card unless/until you expand the filesystem. No harm done. On the
                                          > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                                          > > cause yourself endless grief. First of all, there's no guarantee
                                          > > that even if there's less than 4gig of data on the 8gig image that
                                          > > the data is at the "bottom" of the filesystem. Your system will
                                          > > also see an 8gig partition on a 4gig device, causing all sorts of
                                          > > headaches. The solution here is to mount the source device (for
                                          > > example, on /media/deadbeef) then partition, format, and mount the
                                          > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                                          > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                                          > > contents with something like rsync ("sudo rsync -av --delete /media/
                                          > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                                          > > are, you're guaranteed to hork things permanently). Using rsync
                                          > > will work so long as the data from the larger card will fit in the
                                          > > available space on the smaller card. If you don't have rsync on
                                          > > your system, you can do it the way we did it in the old days:
                                          > >
                                          > >
                                          > >
                                          > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                          > >
                                          > >
                                          > >
                                          > > But that's pretty old-school. :D Doing a recursive copy with cp
                                          > > may or may not preserve ownership and permissions, depending on the
                                          > > flags you provide. And it won't copy special files (ie, files in /
                                          > > dev/, /proc/, etc).
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                          > >
                                          > >
                                          > >
                                          > > If you are running Linux use dd:
                                          > > man dd for help.
                                          > >
                                          > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com, Andy B wrote:
                                          > > >
                                          > > > It's Win32diskimager (winimage for short):Â
                                          > > > https://launchpad.net/win32-image-writer/+download
                                          > >
                                          > >
                                          > > >
                                          > > > You can use "gparted" in another linux box to resize up & down.
                                          > > >
                                          > > > However I've noticed so far that even if you shrink the partition
                                          > >
                                          > > > can't get smaller image.   The Winimage makes image of the
                                          > > entire
                                          > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                                          > >
                                          > >
                                          > > > this more as would like to shrink some down again. (for storage)
                                          > > >
                                          > > > " sudo apt-get gparted" or use synaptic package manager.
                                          > > > Must use different machine,& of course get the right partition!:)
                                          > > >
                                          > > >
                                          > >
                                          > > > Â
                                          > >
                                          > >
                                          > > > Later,Andy (AC2HE)
                                          > > >
                                          > > >
                                          > > > ________________________________
                                          > > > From: Rick Nicholson
                                          > >
                                          > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com"
                                          > >
                                          > > > Sent: Monday, January 7, 2013 1:51 AM
                                          > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                          > > >
                                          > > >
                                          > >
                                          > > > Â
                                          > > > Will
                                          > > > Â
                                          > >
                                          > >
                                          > > > If you have a reader writer you can copy the image and rewrite it
                                          > > onto another card/ If your using Windows you will have to use the
                                          > > imager reference in the RPI beginners guide/ I dont recalll the name
                                          > > of the utility.
                                          > >
                                          > > > Â
                                          > > > Â
                                          > >
                                          > >
                                          > > > Rick
                                          > > >
                                          > > > From: William Liporace - WC2L
                                          > >
                                          > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                          > > > Sent: Sunday, January 6, 2013 9:49 AM
                                          > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                          > > >
                                          > >
                                          > > > Â
                                          > >
                                          > > > Is there an easy way to copy SD cards?? Do you create an image or
                                          > > can copy the files from one to another??
                                          > > >
                                          > > > TNX Will WC2L
                                          > > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > > --
                                          > > -=jeff=-
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          > >
                                          >

                                          ------------------------------------

                                          Yahoo! Groups Links

                                        • Jim Thisdale
                                          Hi John Do you know which SDR program you need to support your SDR device? Which Linux operating system is on your SDcard? (There is at least 5 different ones
                                          Message 20 of 25 , Jan 11, 2013
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                                            Hi John

                                            Do you know which SDR program you need to support your SDR device?

                                            Which Linux operating system is on your SDcard? (There is at least 5
                                            different ones that I know of)

                                            How do you access your Pi, do you have a monitor,mouse,keyboard
                                            attached, or do you use SSH or VNC to access it?

                                            If a version of the SDR software is available for the Pi/linux then this
                                            should not be all that hard to do, we might even be able to do it remotely.

                                            -Jim-
                                            Visit my Pi running ircddb, dvrptr, Apache2 web-server & other things:
                                            http://n1jmm.no-ip.org
                                            http://n1jmm.no-ip.org/index.php

                                            On 1/11/13 3:02 AM, John B. Cundiff Jr wrote:
                                            >
                                            >
                                            > I already have one of these SD cards with the Linux OS on it ...and it
                                            > workls fine. I can cruise the internet wit it
                                            > BUT . it does not have the software I need to operate the Realtec
                                            > Dongle receiver .
                                            > So I can not run Software Defined Radio programs I do not know how to
                                            > load onto the SD card..
                                            >
                                            > On Jan 10, 2013, at 8:14 PM, Alan Melia wrote:
                                            >
                                            >> Farnell ( & CPC) sell programmed SD cards in UK (Premier in US??)
                                            >> these are
                                            >> 4G but if you are going to use this you need to be able to update the OS
                                            >> regularly things are changing all the time. The preprogrammed cards my
                                            >> not
                                            >> be the latest Rasbian though you may be able to update on line once
                                            >> working.
                                            >> Alan
                                            >> G3NYK
                                            >> ----- Original Message -----
                                            >> From: "Andy" oldtech60@... <mailto:oldtech60%40yahoo.com>>
                                            >> To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>>
                                            >> Sent: Thursday, January 10, 2013 10:19 PM
                                            >> Subject: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                            >>
                                            >> John:
                                            >>
                                            >> Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                                            >> image on them. http://www.mcmelectronics.com/product/83-14268
                                            >>
                                            >> Don't believe you can boot from a dongle,maybe some one else knows for
                                            >> sure.
                                            >> You boot from the SD slot built into the Pi.
                                            >>
                                            >> This place has lots of accessories for the Pi. I have no connection to
                                            >> them
                                            >> other than buying from them a few times.
                                            >>
                                            >> Later Andy (AC2HE)
                                            >>
                                            >> --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>, "John B. Cundiff Jr"
                                            >> wrote:
                                            >> >
                                            >> >
                                            >> >
                                            >> >
                                            >> > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                            >> > programs I can use with a Realtec Dongle .
                                            >> > that I can use with the Raspberry Pi computer.
                                            >> > I have been unable to make my own SD cards that will work.
                                            >> >
                                            >> > jbcundiffjr@...
                                            >> >
                                            >> >
                                            >> >
                                            >> > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                            >> >
                                            >> > >
                                            >> > > Awesome!! Thank you for the lesson!
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > Will WC2L
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                            >> > > [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                            >> > > ] On Behalf Of Jeff FrancisT
                                            >> > > Sent: Wednesday, January 09, 2013 7:19 PM
                                            >> > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                            >> > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > While dd works great, take a minute and install dd_rescue (if
                                            >> > > you're on a Debian-derived linux, do "sudo apt-get install
                                            >> > > dd_rescue"). dd_rescue gives you progress updates and time
                                            >> > > estimates. Functionally, it's the same, it just gives more feedback.
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > To copy an image off of an SD card, you'll need to know which
                                            >> > > device it is and what you'd like to name the image file on your hard
                                            >> > > drive. Assume that the SD card is /dev/sdb and you want to name the
                                            >> > > image file on your hard drive foo.dd. Run the following command:
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > sudo dd_rescue /dev/sdb foo.dd
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > or if you prefer dd:
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > After a wait, you'll have an image of your SD card on your hard
                                            >> > > drive called foo.dd. That file is typically very compressable. Use
                                            >> > > bzip2 -9 for maximum compression.
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > To write an image onto an SD card, it's very similar. Again,
                                            >> > > assume sdb and foo.dd:
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > sudo dd_rescue foo.dd /dev/sdb
                                            >> > >
                                            >> > > or
                                            >> > >
                                            >> > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > Note that you shouldn't guess what disk device the card is. If
                                            >> > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                            >> > > hard drive rather than your SD card. Errors are dangerous!
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > If you have two SD card readers in your machine (say sdb and sdc),
                                            >> > > you can copy directly from one card to the other:
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > sudo dd_rescue /dev/sdb /dev/sdc
                                            >> > >
                                            >> > > or
                                            >> > >
                                            >> > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > This doesn't work for moving data between cards of different
                                            >> > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                            >> > > anything, other than you'll only use half of the space on the 8gig
                                            >> > > card unless/until you expand the filesystem. No harm done. On the
                                            >> > > other hand, if you try to dd an 8gig image onto a 4gig card, you can
                                            >> > > cause yourself endless grief. First of all, there's no guarantee
                                            >> > > that even if there's less than 4gig of data on the 8gig image that
                                            >> > > the data is at the "bottom" of the filesystem. Your system will
                                            >> > > also see an 8gig partition on a 4gig device, causing all sorts of
                                            >> > > headaches. The solution here is to mount the source device (for
                                            >> > > example, on /media/deadbeef) then partition, format, and mount the
                                            >> > > destination device ("sudo fdisk /dev/sd?", "sudo mkfs.ext? /dev/
                                            >> > > sd?", then "sudo mount /dev/sd?? /mnt"). Then you can copy the
                                            >> > > contents with something like rsync ("sudo rsync -av --delete /media/
                                            >> > > deadbeef/ /mnt/"). Again, don't just guess the values where the "?"
                                            >> > > are, you're guaranteed to hork things permanently). Using rsync
                                            >> > > will work so long as the data from the larger card will fit in the
                                            >> > > available space on the smaller card. If you don't have rsync on
                                            >> > > your system, you can do it the way we did it in the old days:
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv /mnt/
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > But that's pretty old-school. :D Doing a recursive copy with cp
                                            >> > > may or may not preserve ownership and permissions, depending on the
                                            >> > > flags you provide. And it won't copy special files (ie, files in /
                                            >> > > dev/, /proc/, etc).
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > If you are running Linux use dd:
                                            >> > > man dd for help.
                                            >> > >
                                            >> > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>, Andy B wrote:
                                            >> > > >
                                            >> > > > It's Win32diskimager (winimage for short):Â
                                            >> > > > https://launchpad.net/win32-image-writer/+download
                                            >> > >
                                            >> > >
                                            >> > > >
                                            >> > > > You can use "gparted" in another linux box to resize up & down.
                                            >> > > >
                                            >> > > > However I've noticed so far that even if you shrink the partition
                                            >> > >
                                            >> > > > can't get smaller image.   The Winimage makes image of the
                                            >> > > entire
                                            >> > > > drive. IE: if it's an 8 gig that's what we get. Will be pursuing
                                            >> > >
                                            >> > >
                                            >> > > > this more as would like to shrink some down again. (for storage)
                                            >> > > >
                                            >> > > > " sudo apt-get gparted" or use synaptic package manager.
                                            >> > > > Must use different machine,& of course get the right partition!:)
                                            >> > > >
                                            >> > > >
                                            >> > >
                                            >> > > > Â
                                            >> > >
                                            >> > >
                                            >> > > > Later,Andy (AC2HE)
                                            >> > > >
                                            >> > > >
                                            >> > > > ________________________________
                                            >> > > > From: Rick Nicholson
                                            >> > >
                                            >> > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>"
                                            >> > >
                                            >> > > > Sent: Monday, January 7, 2013 1:51 AM
                                            >> > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                            >> > > >
                                            >> > > >
                                            >> > >
                                            >> > > > Â
                                            >> > > > Will
                                            >> > > > Â
                                            >> > >
                                            >> > >
                                            >> > > > If you have a reader writer you can copy the image and rewrite it
                                            >> > > onto another card/ If your using Windows you will have to use the
                                            >> > > imager reference in the RPI beginners guide/ I dont recalll the name
                                            >> > > of the utility.
                                            >> > >
                                            >> > > > Â
                                            >> > > > Â
                                            >> > >
                                            >> > >
                                            >> > > > Rick
                                            >> > > >
                                            >> > > > From: William Liporace - WC2L
                                            >> > >
                                            >> > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                            >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                            >> > > > Sent: Sunday, January 6, 2013 9:49 AM
                                            >> > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                            >> > > >
                                            >> > >
                                            >> > > > Â
                                            >> > >
                                            >> > > > Is there an easy way to copy SD cards?? Do you create an image or
                                            >> > > can copy the files from one to another??
                                            >> > > >
                                            >> > > > TNX Will WC2L
                                            >> > > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > > --
                                            >> > > -=jeff=-
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> > >
                                            >> >
                                            >>
                                            >> ------------------------------------
                                            >>
                                            >> Yahoo! Groups Links
                                            >>
                                            >
                                            >
                                            >
                                            >
                                          • Robert Nickels
                                            ... Hi Guys, Not to toss a wet blanket on what I too would love to see happen, but the Pi CPU just doesn t have the processing power to run the DSP code
                                            Message 21 of 25 , Jan 11, 2013
                                            • 0 Attachment
                                              On 1/11/2013 8:46 AM, Jim Thisdale wrote:
                                              > If a version of the SDR software is available for the Pi/linux then this
                                              > should not be all that hard to do, we might even be able to do it remotely.
                                              Hi Guys,

                                              Not to toss a wet blanket on what I too would love to see happen, but
                                              the Pi CPU just doesn't have the processing power to run the DSP code
                                              that's needed for a full SDR application. I'm no DSP guru, but this
                                              comes straight from guys who are. Now you might wonder why this is the
                                              case since the Pi is capable of playing beautiful HD quality video?
                                              The answer is, video utilizes the GPU (Graphics Processing Unit) on the
                                              Pi, which is restricted for other uses by terms of the license agreement
                                              to help keep the price low. I'm hoping that this will change someday,
                                              and SDR developers will invest the time and energy needed to utilize the
                                              GPU for SDR purposes.

                                              Meanwhile if you search the archives of this list you'll find my posts
                                              about using the Pi as a "Dongle Server" for a $15 DVB-T stick. I'm
                                              sitting here listening to MIDCARS on 40 meters by running SDR# software
                                              on this XP PC which is getting a stream of I/Q samples from my Raspberry
                                              Pi "dongle server" at the other end of the house.

                                              This application, which only requires the Pi to receive samples from the
                                              dongle and re-transmit them at a rate of 1.024 million samples per
                                              secont via ethernet, takes 30% of the Pi CPU. I control it remotely
                                              via ssh and putty.

                                              73, Bob W9RAN
                                            • John B. Cundiff Jr.
                                              Gentle men I love this idea ...now who can load a SD card with the software I need . I have a Paspberry Pi and a Hackberry pi with the WiFi built in to the
                                              Message 22 of 25 , Jan 11, 2013
                                              • 0 Attachment
                                                Gentle men

                                                I love this idea ...now who can load a SD card with the software I need .
                                                I have a Paspberry Pi and a Hackberry pi with the WiFi built in to the card.

                                                I can hang the Hackberry Pi up in the trees outside ..Solar power it with
                                                rechargeable batteries.
                                                ..right at the antenna and connect threw my WiFi network in my house.
                                                Remotely control it ...
                                                No sound card no video necessary...is every body happy now...can we do this?
                                                who will load a SD card with the Linux OS and the SDR software and server
                                                etc....and sell it to me ?

                                                John

                                                -----Original Message-----
                                                From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Robert
                                                Nickels
                                                Sent: Friday, January 11, 2013 7:33 AM
                                                To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                                                On 1/11/2013 8:46 AM, Jim Thisdale wrote:
                                                > If a version of the SDR software is available for the Pi/linux then
                                                > this should not be all that hard to do, we might even be able to do it
                                                remotely.
                                                Hi Guys,

                                                Not to toss a wet blanket on what I too would love to see happen, but the Pi
                                                CPU just doesn't have the processing power to run the DSP code
                                                that's needed for a full SDR application. I'm no DSP guru, but this
                                                comes straight from guys who are. Now you might wonder why this is the
                                                case since the Pi is capable of playing beautiful HD quality video?
                                                The answer is, video utilizes the GPU (Graphics Processing Unit) on the Pi,
                                                which is restricted for other uses by terms of the license agreement to help
                                                keep the price low. I'm hoping that this will change someday, and SDR
                                                developers will invest the time and energy needed to utilize the GPU for SDR
                                                purposes.

                                                Meanwhile if you search the archives of this list you'll find my posts about
                                                using the Pi as a "Dongle Server" for a $15 DVB-T stick. I'm sitting here
                                                listening to MIDCARS on 40 meters by running SDR# software on this XP PC
                                                which is getting a stream of I/Q samples from my Raspberry Pi "dongle
                                                server" at the other end of the house.

                                                This application, which only requires the Pi to receive samples from the
                                                dongle and re-transmit them at a rate of 1.024 million samples per
                                                secont via ethernet, takes 30% of the Pi CPU. I control it remotely
                                                via ssh and putty.

                                                73, Bob W9RAN



                                                ------------------------------------

                                                Yahoo! Groups Links
                                              • John B. Cundiff Jr.
                                                I have a DVB-T Dongle that contains a Realtek 2832 quadrature decoder chip and a Elonics E4000 Simular Dongles are FUNcube Dongle,SDR-4,LazyDog s
                                                Message 23 of 25 , Jan 11, 2013
                                                • 0 Attachment
                                                  I have a DVB-T Dongle that contains a Realtek 2832 quadrature decoder
                                                  chip and a Elonics E4000
                                                  Simular Dongles are FUNcube Dongle,SDR-4,LazyDog's LD-1,SDR-IQ, SDR-14
                                                  RTL2832U / RTLSDR

                                                  SDR.osmocom.org/trac/wiki/RTL-SDR

                                                  sdsrsharp.com

                                                  sdrsharp.com/index.php/downloads

                                                  RTLsdr.org/software

                                                  public-xrp.s3.amazonaws.com/Release-latest.zip

                                                  uk.groups.yahoo.com/groups/SDRSharp/.

                                                  tinyurl.com/blsg2or

                                                  goo.gl/suS2w



                                                  -----Original Message-----
                                                  From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com] On Behalf Of Jim Thisdale
                                                  Sent: Friday, January 11, 2013 6:47 AM
                                                  To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??

                                                  Hi John

                                                  Do you know which SDR program you need to support your SDR device?

                                                  Which Linux operating system is on your SDcard? (There is at least 5
                                                  different ones that I know of)

                                                  How do you access your Pi, do you have a monitor,mouse,keyboard attached, or
                                                  do you use SSH or VNC to access it?

                                                  If a version of the SDR software is available for the Pi/linux then this
                                                  should not be all that hard to do, we might even be able to do it remotely.

                                                  -Jim-
                                                  Visit my Pi running ircddb, dvrptr, Apache2 web-server & other things:
                                                  http://n1jmm.no-ip.org
                                                  http://n1jmm.no-ip.org/index.php

                                                  On 1/11/13 3:02 AM, John B. Cundiff Jr wrote:
                                                  >
                                                  >
                                                  > I already have one of these SD cards with the Linux OS on it ...and
                                                  > it workls fine. I can cruise the internet wit it
                                                  > BUT . it does not have the software I need to operate the Realtec
                                                  > Dongle receiver .
                                                  > So I can not run Software Defined Radio programs I do not know how
                                                  > to load onto the SD card..
                                                  >
                                                  > On Jan 10, 2013, at 8:14 PM, Alan Melia wrote:
                                                  >
                                                  >> Farnell ( & CPC) sell programmed SD cards in UK (Premier in US??)
                                                  >> these are 4G but if you are going to use this you need to be able to
                                                  >> update the OS regularly things are changing all the time. The
                                                  >> preprogrammed cards my not be the latest Rasbian though you may be
                                                  >> able to update on line once working.
                                                  >> Alan
                                                  >> G3NYK
                                                  >> ----- Original Message -----
                                                  >> From: "Andy" oldtech60@... <mailto:oldtech60%40yahoo.com>>
                                                  >> To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>>
                                                  >> Sent: Thursday, January 10, 2013 10:19 PM
                                                  >> Subject: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                                  >>
                                                  >> John:
                                                  >>
                                                  >> Here's a link to MCM that has 4 gig sd cards with the Raspian Wheezy
                                                  >> image on them. http://www.mcmelectronics.com/product/83-14268
                                                  >>
                                                  >> Don't believe you can boot from a dongle,maybe some one else knows
                                                  >> for sure.
                                                  >> You boot from the SD slot built into the Pi.
                                                  >>
                                                  >> This place has lots of accessories for the Pi. I have no connection
                                                  >> to them other than buying from them a few times.
                                                  >>
                                                  >> Later Andy (AC2HE)
                                                  >>
                                                  >> --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>, "John B. Cundiff Jr"
                                                  >> wrote:
                                                  >> >
                                                  >> >
                                                  >> >
                                                  >> >
                                                  >> > I wood like to buy a SD card pre loaded with Linux OS and SDR
                                                  >> > programs I can use with a Realtec Dongle .
                                                  >> > that I can use with the Raspberry Pi computer.
                                                  >> > I have been unable to make my own SD cards that will work.
                                                  >> >
                                                  >> > jbcundiffjr@...
                                                  >> >
                                                  >> >
                                                  >> >
                                                  >> > On Jan 9, 2013, at 7:48 PM, William Liporace - WC2L wrote:
                                                  >> >
                                                  >> > >
                                                  >> > > Awesome!! Thank you for the lesson!
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > Will WC2L
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > From: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                                  >> > > [mailto:Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                                  >> > > ] On Behalf Of Jeff FrancisT
                                                  >> > > Sent: Wednesday, January 09, 2013 7:19 PM
                                                  >> > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                                  >> > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Re: Copy SD cards??
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > While dd works great, take a minute and install dd_rescue (if
                                                  >> > > you're on a Debian-derived linux, do "sudo apt-get install
                                                  >> > > dd_rescue"). dd_rescue gives you progress updates and time
                                                  >> > > estimates. Functionally, it's the same, it just gives more feedback.
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > To copy an image off of an SD card, you'll need to know which
                                                  >> > > device it is and what you'd like to name the image file on your
                                                  >> > > hard drive. Assume that the SD card is /dev/sdb and you want to
                                                  >> > > name the image file on your hard drive foo.dd. Run the following
                                                  command:
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > sudo dd_rescue /dev/sdb foo.dd
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > or if you prefer dd:
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > sudo dd if=/dev/sdb of=foo.dd bs=4k
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > After a wait, you'll have an image of your SD card on your hard
                                                  >> > > drive called foo.dd. That file is typically very compressable.
                                                  >> > > Use
                                                  >> > > bzip2 -9 for maximum compression.
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > To write an image onto an SD card, it's very similar. Again,
                                                  >> > > assume sdb and foo.dd:
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > sudo dd_rescue foo.dd /dev/sdb
                                                  >> > >
                                                  >> > > or
                                                  >> > >
                                                  >> > > sudo dd if=foo.dd of=/dev/sdb bs=4k
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > Note that you shouldn't guess what disk device the card is. If
                                                  >> > > you guess wrong (ie, /dev/sda), you'll write the image onto your
                                                  >> > > hard drive rather than your SD card. Errors are dangerous!
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > If you have two SD card readers in your machine (say sdb and
                                                  >> > > sdc), you can copy directly from one card to the other:
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > sudo dd_rescue /dev/sdb /dev/sdc
                                                  >> > >
                                                  >> > > or
                                                  >> > >
                                                  >> > > sudo dd if=/dev/sdb of=/dev/sdc bs=4k
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > This doesn't work for moving data between cards of different
                                                  >> > > sizes. If you dd a 4gig image onto an 8gig, you won't hurt
                                                  >> > > anything, other than you'll only use half of the space on the
                                                  >> > > 8gig card unless/until you expand the filesystem. No harm done.
                                                  >> > > On the other hand, if you try to dd an 8gig image onto a 4gig
                                                  >> > > card, you can cause yourself endless grief. First of all, there's
                                                  >> > > no guarantee that even if there's less than 4gig of data on the
                                                  >> > > 8gig image that the data is at the "bottom" of the filesystem.
                                                  >> > > Your system will also see an 8gig partition on a 4gig device,
                                                  >> > > causing all sorts of headaches. The solution here is to mount the
                                                  >> > > source device (for example, on /media/deadbeef) then partition,
                                                  >> > > format, and mount the destination device ("sudo fdisk /dev/sd?",
                                                  >> > > "sudo mkfs.ext? /dev/ sd?", then "sudo mount /dev/sd?? /mnt").
                                                  >> > > Then you can copy the contents with something like rsync ("sudo
                                                  >> > > rsync -av --delete /media/ deadbeef/ /mnt/"). Again, don't just guess
                                                  the values where the "?"
                                                  >> > > are, you're guaranteed to hork things permanently). Using rsync
                                                  >> > > will work so long as the data from the larger card will fit in
                                                  >> > > the available space on the smaller card. If you don't have rsync
                                                  >> > > on your system, you can do it the way we did it in the old days:
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > cd /media/deadbeef/; find . -depth -print | sudo cpio -pdmuv
                                                  >> > > /mnt/
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > But that's pretty old-school. :D Doing a recursive copy with cp
                                                  >> > > may or may not preserve ownership and permissions, depending on
                                                  >> > > the flags you provide. And it won't copy special files (ie, files
                                                  >> > > in / dev/, /proc/, etc).
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > On Wed, Jan 9, 2013 at 10:20 AM, John wrote:
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > If you are running Linux use dd:
                                                  >> > > man dd for help.
                                                  >> > >
                                                  >> > > --- In Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>, Andy B wrote:
                                                  >> > > >
                                                  >> > > > It's Win32diskimager (winimage for short):Â
                                                  >> > > > https://launchpad.net/win32-image-writer/+download
                                                  >> > >
                                                  >> > >
                                                  >> > > >
                                                  >> > > > You can use "gparted" in another linux box to resize up & down.
                                                  >> > > >
                                                  >> > > > However I've noticed so far that even if you shrink the
                                                  >> > > > partition
                                                  >> > >
                                                  >> > > > can't get smaller image.   The Winimage makes image of the
                                                  >> > > entire
                                                  >> > > > drive. IE: if it's an 8 gig that's what we get. Will be
                                                  >> > > > pursuing
                                                  >> > >
                                                  >> > >
                                                  >> > > > this more as would like to shrink some down again. (for
                                                  >> > > > storage)
                                                  >> > > >
                                                  >> > > > " sudo apt-get gparted" or use synaptic package manager.
                                                  >> > > > Must use different machine,& of course get the right
                                                  >> > > > partition!:)
                                                  >> > > >
                                                  >> > > >
                                                  >> > >
                                                  >> > > > Â
                                                  >> > >
                                                  >> > >
                                                  >> > > > Later,Andy (AC2HE)
                                                  >> > > >
                                                  >> > > >
                                                  >> > > > ________________________________
                                                  >> > > > From: Rick Nicholson
                                                  >> > >
                                                  >> > > > To: "Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>"
                                                  >> > >
                                                  >> > > > Sent: Monday, January 7, 2013 1:51 AM
                                                  >> > > > Subject: Re: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                                  >> > > >
                                                  >> > > >
                                                  >> > >
                                                  >> > > > Â
                                                  >> > > > Will
                                                  >> > > > Â
                                                  >> > >
                                                  >> > >
                                                  >> > > > If you have a reader writer you can copy the image and rewrite
                                                  >> > > > it
                                                  >> > > onto another card/ If your using Windows you will have to use the
                                                  >> > > imager reference in the RPI beginners guide/ I dont recalll the
                                                  >> > > name of the utility.
                                                  >> > >
                                                  >> > > > Â
                                                  >> > > > Â
                                                  >> > >
                                                  >> > >
                                                  >> > > > Rick
                                                  >> > > >
                                                  >> > > > From: William Liporace - WC2L
                                                  >> > >
                                                  >> > > > To: Raspberry_Pi_4-Ham_RADIO@yahoogroups.com
                                                  >> <mailto:Raspberry_Pi_4-Ham_RADIO%40yahoogroups.com>
                                                  >> > > > Sent: Sunday, January 6, 2013 9:49 AM
                                                  >> > > > Subject: [Raspberry_Pi_4-Ham_RADIO] Copy SD cards??
                                                  >> > > >
                                                  >> > >
                                                  >> > > > Â
                                                  >> > >
                                                  >> > > > Is there an easy way to copy SD cards?? Do you create an image
                                                  >> > > > or
                                                  >> > > can copy the files from one to another??
                                                  >> > > >
                                                  >> > > > TNX Will WC2L
                                                  >> > > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > > --
                                                  >> > > -=jeff=-
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> > >
                                                  >> >
                                                  >>
                                                  >> ------------------------------------
                                                  >>
                                                  >> Yahoo! Groups Links
                                                  >>
                                                  >
                                                  >
                                                  >
                                                  >


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