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Thread: Installed LILO; broke Windows 7 BOOTMGR

  1. #1
    Join Date
    Jul 2009
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    149
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    Xubuntu 11.04 Natty Narwhal

    Installed LILO; broke Windows 7 BOOTMGR

    Hey there,

    I have a rather complicated problem with a probably simple solution. I used to have a tri-boot machine - my first primary partition was WinXP Pro, second was a Xubuntu installation with swap on an extended partition, and finally a Windows 7 Pro primary partition.

    I deleted WinXP Pro and Xubuntu to create my very first Gentoo Linux installation. While that went well, I accidentally broke my Windows 7 startup. It's listed just fine under LILO (unless I listed it improperly) but Windows 7's BOOTMGR is now missing. I'm assuming the BOOTMGR might have been part of the WinXP installation.

    I went to this guide: Bootmgr is missing - Fix

    However, I don't want to replace the MBR and break LILO/Gentoo. I just want to reinstall the BOOTMGR onto the Windows 7 Pro partition so I can boot both Gentoo and Windows 7 properly. Of course, I might be misinterpreting where the BOOTMGR is normally located.

    Any suggestions?

    Thanks much,
    --Red

  2. #2
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    Re: Installed LILO; broke Windows 7 BOOTMGR

    Look to my signature and investigate EasyBCD.
    EasyBCD.
    PrintersDatabase
    Boot Info Script: How to
    The post above and the post below suffer from the Rashomon effect!

  3. #3
    Join Date
    Jun 2009
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    Ubuntu 16.04 Xenial Xerus

    Re: Installed LILO; broke Windows 7 BOOTMGR

    So we can be sure what is where:

    Boot Info Script courtesy of forum members meierfra & Gert Hulselmans
    Page with instructions and download:
    http://bootinfoscript.sourceforge.net/
    Paste results.txt in a New Reply, then highlight entire file and click on # in edit panel(code tags) to make it easier to read.
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    Windows moves the boot files from the main install to the first install with the boot flag. Lilo also uses boot flag, but has its boot code in the partition boot sector. We often use the Lilo boot loader to repair windows booting but only install the boot loader. To repair the windows you will have to move boot flag to windows partition then move it back.
    You may have to reinstall lilo's boot code, but that is also easy to fix, if windows overwrites it.

    Do you have win7 repairCD?

    Also this is Vista but 7 is the same and explains how windows (and all MBR partitioning schemes) boot.
    To get each MS to have its own boot loader make a second primary partition and set its boot flag on, then install the 2nd product in it. Multibooters, Pictures here worth 1000+ words
    http://www.multibooters.co.uk/multiboot.html
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  4. #4
    Join Date
    Jul 2009
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    149
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    Xubuntu 11.04 Natty Narwhal

    Re: Installed LILO; broke Windows 7 BOOTMGR

    I'll give it a shot. Thanks!

  5. #5
    Join Date
    Jul 2009
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    149
    Distro
    Xubuntu 11.04 Natty Narwhal

    Re: Installed LILO; broke Windows 7 BOOTMGR

    Came up with a different solution - I deleted my Gentoo installation cause I was having too many problems, installed a new Win7 in that space, copied over my files, then deleted the old Win7 and am now installing Lubuntu. From the live disc, it looks like fun!

    Thanks for your input, though.

    --Red

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