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Thread: Broken wubi grub after Vista boot repair

  1. #1
    Join Date
    Dec 2009
    Beans
    20

    Broken wubi grub after Vista boot repair

    I broke my Vista MBR after an attempt to install BURG on wubi. (Which i know now should not be done !)

    I was able to "apt-get install mbr" and got the OS selection screen back asking me to choose between Vista and Ubuntu... Unfortunatly, both failed to start with similar problems.

    Vista: winload.exe was missing or corrupted
    Ubuntu: "some similar file" was missing or corrupted

    So i used a Vista repair CD and got Vista back. (Which i am using now.)
    But when i try to load Ubuntu, i still get the same error as before.

    I guess Grub2 should be reinstalled... How should i do that with WUBI ?

    I just read the section on how to repair the vistual Ubuntu partition at https://wiki.ubuntu.com/WubiGuide... unfortunatly, it just describe how to mount the virtual partition and it doesn't say anything about fixing it.

    Thanks for any help.

  2. #2
    Join Date
    Dec 2009
    Beans
    20

    Re: Broken wubi grub after Vista boot repair

    Just solved the problem by myself like a big boy !!!

    The missing or corrupted file was wubildr.mbr.

    My instincts guided me to this tool from neosmart. (easybcd)

    It fist showed a kind of report with Ubuntu present but with no disk values. As it is a wubi, the disk should have been c:/. The path to wubildr.mbr was already there....

    The only thing to do was to fix with the button on the left menu and here i am !

    2 full days without Ubuntu !! WOW... I was starting to experience some auto mutilation compulsions !

  3. #3
    Join Date
    May 2007
    Location
    Virginia, USA
    Beans
    13,348
    Distro
    Ubuntu Mate Development Release

    Re: Broken wubi grub after Vista boot repair

    For future reference, Wubi does NOT use GRUB or GRUB2; instead, it uses its own version known as GRUB4DOS. So, don't do any GRUB/GRUB2 installs or updates.
    Ubuntu 20.04, Mint 19.10; MS Win10 Pro.
    Will not respond to PM requests for support -- use the forums.

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