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Thread: 9.10 upgrade to 10.04. WIndows 7 unbootable

  1. #1
    Join Date
    May 2010
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    2

    Question 9.10 upgrade to 10.04. WIndows 7 unbootable

    My current situation is I have two physical hard disks, one with Windows 7 (sda) and another where I recently installed Ubuntu 9.1 (sdb). At this time there were no issues.

    Now after getting used to 9.1 I selected to upgrade to 10.04 from the update manager. During this install I was told I needed to upgrade GRUB which I understand is the bootloader and was told to choose where to install it.
    Now at this time I had no knowledge of drive naming conventions in Linux and there was no option to cancel the upgrade to look for help, so instead I followed the advice in the help box to simply select every device listed

    The result was a fully working Ubuntu installation but at the cost of an unbootable Windows 7.Windows is showing on the GRUB menu but selecting it gives only a blank screen with a flashing cursor and no ability to do anything besides ctrl-alt-delete.

    After a few hours of googling solutions including downgrading GRUB, there was no change and it seems that I actually have a version of GRUB on both drives. The one on the windows drive (sda) is the default loaded GRUB that shows Windows 7 but cannot boot it. The second GRUB install on the Ubuntu drive (sdb) is the one I am able to configure through Ubuntu but does not list Windows 7 on its boot list even after using "sudo update-grub"

    I am a novice, until I installed Ubuntu last week my only experience with Linux distros was a Knoppix live cd, but I am not afraid to use the terminal or find configuration information to help solve this. Thank you for any help you can offer

  2. #2
    Join Date
    Apr 2008
    Beans
    10,636

    Re: 9.10 upgrade to 10.04. WIndows 7 unbootable

    The fix is here:

    http://sourceforge.net/apps/mediawik...ms:Boot_Sector

    I filed a bug report to try and get this fixed if you'd be so kind to add yourself as "effected" and add any comments:

    https://bugs.launchpad.net/ubuntu/+s...b2/+bug/576724

  3. #3
    Join Date
    May 2010
    Beans
    2

    Smile Re: 9.10 upgrade to 10.04. WIndows 7 unbootable

    Thank you kansasbob that fix worked flawlessly and have added myself to the affected list on the bug report

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