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Thread: Windows 7 reinstall killed grub, how to get it back?

  1. #1
    Just burned his ISO
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    Aug 2010
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    Default Windows 7 reinstall killed grub, how to get it back?

    Hi,

    I had a working windows 7 64bit / backtrack 4 r1 dual boot, but i had to reinstall windows 7, which is now working fine again. I did not touch the Backtrack installation, but windows 7 overwrited the boot manager, therefore i can't boot backtrack anymore. I could not find any information on this on the Backtrack page. I also still have it installed bootable to a 2 gb thumb drive, if that helps in rebuilding it.

    How to fix this?

    Fate

  2. #2
    Member ColForbin's Avatar
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    Default Re: Windows 7 reinstall killed grub, how to get it back?

    There's a video produced by a Linux enthusiast going by the name nixie, that covers your situation.

    Or you you could try this.
    "Whatever happened to playing a hunch, Scully? The element of surprise, random acts of unpredictability? If we fail to anticipate the unforeseen or expect the unexpected in a universe of infinite possibilities, we may find ourselves at the mercy of anyone or anything that cannot be programmed, categorized or easily referenced."

  3. #3
    Junior Member Agarax's Avatar
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    Mar 2010
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    Default Re: Windows 7 reinstall killed grub, how to get it back?

    I use Super Grub Boot Disk whenever I hose a boot partition.

    http://www.supergrubdisk.org/wiki/Boot_Problems

  4. #4
    Senior Member
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    Jul 2009
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    Default Re: Windows 7 reinstall killed grub, how to get it back?

    Boot into BT 4 with your usb. Mount the BT4 partition.
    then follow

    mount -t proc /proc /mnt/usb/proc
    mount --bind /dev /mnt/usb/dev
    chroot /mnt/usb /bin/bash

    edit grub config files to set up a listing for the windows partition

    Then install grub

    Follow This post as well.
    Last edited by aerokid240; 08-18-2010 at 07:41 PM.

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