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Re: [LINUX_Newbies] Re: Recover Windows Partition_GRUB does not recognize Windows partition

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  • Roy
    Try Parted Magic. It is the tool most used by Linux forensic shops. http://partedmagic.com I believe that Partition Editor or Gparted can do it as well, but
    Message 1 of 6 , Oct 30, 2012
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      Try Parted Magic. It is the tool most used by Linux forensic shops.

      http://partedmagic.com

      I believe that Partition Editor or Gparted can do it as well, but you
      cannot work on a partition that is mounted. It is best to work from a Live
      CD.

      Roy
      Using Kubuntu 12.10, 64-bit
      Location: Canada


      On 29 October 2012 11:03, Pascal <pascal.bernhard@...> wrote:

      > **
      >
      >
      >
      >
      > --- In LINUX_Newbies@yahoogroups.com, Roy <linuxcanuck@...> wrote:
      > >
      > > You can rewrite grub using the Kubuntu Live CD or any other one.
      > >
      > > Got to https://help.ubuntu.com/community/Grub2/Installing
      > > see the section: Reinstalling GRUB 2 from a Working System
      > >
      > > It is rather simple really. You just open a terminal and copy and paste
      > the
      > > line that looks like: sudo grub-install /dev/sda
      > >
      > > It should detect any installed OS and give it a grub entry.
      >
      > Exactly that is the point, GRUB does not detect any OS on this partition
      > and I'm told that the file system is not valid (After shrinking only the
      > file system and not yet the partition, I was able to boot into Windows). I
      > believe there is a problem with the partition. It starts at sector 2048
      > (That's what fdisk set it to when creating a new partition, no smaller
      > value possible via this tool). I installed several GRUBs (GRUB legacy &
      > GRUB 2), they all failed to recognize Windows.
      >
      > Does anyone know of a Linux partitioning tool where you can set the
      > beginning of a new partition at sector 64? That's the starting point of a
      > NTFS-formatted USB drive, and I suspect, that is where the Windows
      > partition should actually start for GRUB to detect a Windows operating
      > system.
      >
      > In the meantime, I guess I will install Windows 7 on another computer
      >
      > Thanks for your help,
      >
      > Pascal
      >
      > >
      > > > **
      >
      > > >
      > > >
      > > > Do you have a Windows CD to boot from? Do you know the Admin Password?
      > For
      > > > WinXP, I've used Fixboot and FixMBR, then later I've used the Grub Disk
      >
      > > > Repair CD. I hope you remembered to run Defrag on the Windows hard
      > drive
      > > > before resizing its partition.
      > > >
      > > > Excuse if I left out any steps, but others have no doubt run into this
      > > > more than I have.
      > > >
      > > > Joan in Reno
      > > >
      > > > --- On Sun, 10/28/12, Pascal <pascal.bernhard@...> wrote:
      > > >
      > > > From: Pascal <pascal.bernhard@...>
      > > > Subject: [LINUX_Newbies] Recover Windows Partition_GRUB does not
      > recognize
      > > > Windows partition
      > > > To: LINUX_Newbies@yahoogroups.com
      > > > Date: Sunday, October 28, 2012, 4:48 PM
      >
      > > >
      > > >
      > > >
      > > > I wanted to shrink a Windows-XP partition under a dual boot setup
      > (Kubuntu
      > > > 12.10), in order to install a different Linux and have more space for
      > it on
      > > > the harddrive. So I resized it via ntfsresize -b -s 60GB (original
      > size was
      > > > 90GB). Kubuntu's GRUB booted Windows correctly. Then I deleted the
      > > > NTFS-partition with fdisk and recreated in its place a smaller one
      > (size
      > > > 61GB, a little bigger than the newly shrunk file system).
      > Unfortunately I
      > > > did not pay attention to the starting point of the original Windows
      > > > partition, and had it start on the default value fdisk assumes, that is
      > > > 2048.
      > > >
      > > > All of a sudden, Kubuntu's GRUB told me that no partition was found, I
      > had
      > > > deleted the Linux partitions behind Windows in the meantime, as
      > Siduction's
      > > > installer (I did not want Ubuntu stuff anymore) does not feature a
      > working,
      > > > easy to use partioning tool like gparted. Somehow the installed GRUB
      > barely
      > > > understood (that is, it understood some but not all) GRUB2 and GRUB
      > > > commands when it dropped to grub shell on bootup. It saw the
      > > > NTFS-partition, but I could not make it boot it.
      > > >
      > > > ls & set root=(hdX,Y) worked
      > > >
      > > > drivemap -s (hd0) ${root} didn't
      > > >
      > > > so I was stuck
      > > >
      > > > Then I installed Siduction and Fuduntu on the free disk space. Both
      > > > installed their respective GRUB into the MBR of the partition, but
      > neither
      > > > of them detected a Windows OS. Right now I can choose between
      > Siduction and
      > > > Fuduntu. The command os-prober wasn't successful either. I cannot mount
      > > > (Running Fuduntu or Siduction) the partition (/dev/sda1), for I'm told,
      > > > that it doesn't contain a valid NTFS file system.
      > > >
      > > > Does somebody know how to fix that? Do I have to reinstall Windows?
      > > >
      > > > Pascal
      > > >
      > > > [Non-text portions of this message have been removed]
      > > >
      > > >
      > > >
      > >
      > >
      > > [Non-text portions of this message have been removed]
      > >
      >
      >
      >


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