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Thread: windows not booting in grub2

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  1. #1
    Join Date
    Jun 2007
    Location
    Buenos Aires, Argentina
    Beans
    8
    Distro
    Hardy Heron (Ubuntu Development)

    windows not booting in grub2

    Hi, I have a computer with Ubuntu 12.04 and I can't boot to windows 7, every time that I selected in grub it take back to the grub menu. This is the boot-repair report http://paste.ubuntu.com/1348907/

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: windows not booting in grub2

    You have installed grub2's boot loader to the PBR or partition boot sector of the Windows partition. Windows has to have a Windows PBR in all NTFS partitions, not grub.

    Code:
    sda1: ______________________________________________________
    
        File system:       ntfs
        Boot sector type:  Grub2 (v1.99-2.00)
        Boot sector info:  Grub2 (v1.99) is installed in the boot sector of sda1 
                           and looks at sector 296189104 of the same hard drive 
                           for core.img. core.img is at this location and looks 
                           for (,msdos7)/boot/grub on this drive. No errors found 
                           in the Boot Parameter Block.
        Operating System:  Windows 7
        Boot files:        /grldr /bootmgr /Boot/BCD 
                           /Windows/System32/winload.exe /grldr
    Fix for most, a few have other issues, better than windows fix in many cases as it also fixes other parameters:

    This has instructions on using testdisk to repair the install of grub to the boot sector for windows from Ubuntu or Linux LiveCD.
    http://sourceforge.net/apps/mediawik...ms:Boot_Sector
    You want to get to this screen:
    http://www.cgsecurity.org/wiki/TestD...ector_recovery

    OR:

    [HowTo] Repair the bootsector of a Windows partition - YannBuntu
    https://help.ubuntu.com/community/BootSectorFix
    http://ubuntuforums.org/showthread.php?t=1926510

    You show several /grldr folders. Were you trying to use EasyBCD? I so you may want to try their forums.

    http://neosmart.net/blog/
    http://neosmart.net/wiki/display/EBCD/Linux
    http://neosmart.net/wiki/display/EBCD/Ubuntu
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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