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Thread: Dual Boot Issue

  1. #1
    Join Date
    May 2009
    Beans
    111
    Distro
    Ubuntu 12.04 Precise Pangolin

    Dual Boot Issue

    Hi,

    i`m facing a very strange issue, i`ve installed "clean installation" windows 7 ad then after ubuntu 11.10. Every thing went smooth. the at starting menu i do have Ubuntu & win7 to select from. When i choose win7, the screen go blank "like restarting the gurp or something" and take be back again to the selecting menu, when i choose ubuntu it works fine, but never load win7 and no error msg.

    thanks

  2. #2
    Join Date
    Jan 2007
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Dual Boot Issue

    It sounds very much like you may have installed Grub to the Windows partition.

    You have several options:

    1. You can view the following link, which describes how to correct the problem:
    http://sourceforge.net/apps/mediawik...ms:Boot_Sector

    2. You can download and run the boot info script and post the contents of the RESULTS.txt file it generates. It shows the boot status of your system and help us troubleshoot. You can get to the script download page by clicking the "BIS" link in my signature line.

    3. Or you can install the Boot Repair app. It may be able to help with this specific issue (I'm not sure if it can modify Windows installs) but at minimum it incorporates the Boot Info Script, which you can run from inside the app.
    http://ubuntuforums.org/showthread.php?t=1769482
    Back to Xorg...

    Retired.

  3. #3
    Join Date
    Oct 2009
    Location
    Upminster, Essex, UK
    Beans
    544

    Thumbs down Re: Dual Boot Issue

    If you have a "100MB" ntfs partition (marked as "system reserved" in gparted and typically sda1) and then your main windows partition you might find that grub is pointed at the 100MB partition and grub needs manual editing to point it at the main windows partition (sda2).

    Grub 2 auto OS finder thingy gets caught out sometimes

  4. #4
    Join Date
    May 2007
    Location
    Virginia, USA
    Beans
    13,348
    Distro
    Ubuntu Mate Development Release

    Re: Dual Boot Issue

    If GRUB is pointing to the 100MB partition, then you have the problem that drs305 mentioned and you will have to do the repairs as well. You certainly do not want GRUB pointing at your Windows partition; you want it pointing at the appropriate Linux filesystem partition.

    If you're getting a blank screen when selecting Win7, then it's likely, that if you used the Ubuntu installer to shrink the Win7 OS to install Ubuntu side-by-side, that it left the Win7 OS partition in an unusual state, and it won't boot now.

    If that happened to you, you will have to repair the Win7 boot loader to get it working again. The step #3 in drs305 post might be able to fix that.
    Ubuntu 20.04, Mint 19.10; MS Win10 Pro.
    Will not respond to PM requests for support -- use the forums.

  5. #5
    Join Date
    May 2009
    Beans
    111
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Dual Boot Issue

    Thanks all for the help. Well i used the first option as suggested by DRS305. it seems the step deleted the boot loader and recovered the one used by windows "now only the system log directly to windows without waiting for selecting".

    So, next step was to use the EasyBCD. to Manage "and install the boot loader". Things working gr8 now. thank you all.

    Regards,

    MOe!

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