Results 1 to 6 of 6

Thread: Unable to boot to Windows 7 after 12.10 upgrade

  1. #1
    Join Date
    Dec 2012
    Beans
    8

    Unable to boot to Windows 7 after 12.10 upgrade

    Hi everyone,

    I recently upgraded to 12.10 and can no longer boot into Windows 7. When I select the Windows 7 partition in grub I get "error: device format "ldm... invlaid: must be (f|h)dN, with 0<= N < 128" (... is a bunch of numbers and characters) then I press any key and get "a disk read error occured, press ctrl+alt+del to restart". I have done a little research and this bug seems to be similar to mine https://bugs.launchpad.net/ubuntu/+s...2/+bug/1061255

    I have Ubuntu 12.04 on a usb that I can boot into for boot repair ("Workaround 3" in the above post), I just want to make sure that other people think that is a good idea, because I am fairly new to Ubuntu/grub. Thanks for any advice!
    Last edited by nexusvergil; December 30th, 2012 at 12:48 AM.

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Unable to boot to Windows 7 after 12.10 upgrade

    Welcome to the forums.

    Post the link to the BootInfo report that this creates. Is part of Boot-Repair:

    https://help.ubuntu.com/community/Boot-Info
    Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or 'Create BootInfo' report (Other Options) & post the link it creates, so we can see your exact configuration and diagnose advanced problems.
    Install in Ubuntu liveCD or USB or Full RepairCD with Boot-Repair (for newer computers)
    http://sourceforge.net/p/boot-repair/home/Home/
    https://help.ubuntu.com/community/UbuntuSecureRemix
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




  3. #3
    Join Date
    Dec 2012
    Beans
    8

    Re: Unable to boot to Windows 7 after 12.10 upgrade

    Thanks for the quick response.

    http://paste.ubuntu.com/1477507

  4. #4
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Unable to boot to Windows 7 after 12.10 upgrade

    Did you convert Windows back from UEFI to BIOS? It is unusual to have the vendor repair partition to have efi files and be sda5.

    Also you grub also is a bit unusual in that it is directly looking for core.img in the partition. Normally that is in the sectors after the MBR and before first partition. I would use Boot-Repair to update grub.

    Windows looks like it has all its boot files, but NTFS partitions are real sensitive to any changes. They have to have the PBR - partition boot sector have correct info. Boot script generally says it is ok, but it does not check all the details. You may need to run chkdsk from a Windows repairCD or make other repairs from the Windows repairCD.
    Make your own Windows repairCD (not vendor recovery):
    http://forums.techarena.in/guides-tutorials/1114725.htm


    How to Boot to the System Recovery Options in Windows 7
    http://www.sevenforums.com/tutorials...y-options.html
    http://www.sevenforums.com/tutorials...ot-record.html
    http://windows7ultimate.windowsreins...indexthumbs.ht
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




  5. #5
    Join Date
    Dec 2012
    Beans
    8

    Re: Unable to boot to Windows 7 after 12.10 upgrade

    Thanks so much for the help, oldfred!

    I ran boot repair, and I am now able to boot into my Windows 7 partition.

  6. #6
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Unable to boot to Windows 7 after 12.10 upgrade

    It must have been related to how grub was loading. I was sure that it was something in Windows.

    Glad you got it working.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.




Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •