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Thread: GRUB Windows 7 option is a loop

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  1. #1
    Join Date
    Dec 2010
    Beans
    1

    GRUB Windows 7 option is a loop

    I recently updated my ubuntu to 12.04 in a machine where I had installed Windows 7 and Ubuntu 10.04. After this my boot was messed up, but I could "fix it" using the SGD (http://www.supergrubdisk.org/). The problem I am facing now is that whenever I choose Windows 7 on the GRUB menu, it loops back into the same menu, and using the SGD it also goes back to this.

    I have searched google and this forums, and I found out that many people had the same problems as me, but the most common solution which is using the Windows 7 CD to repair the startup (using it three times) didn't work. So I would appreciate if someone can help me with this matter.

    I also used the bootinfo script (http://sourceforge.net/projects/bootinfoscript/) but I don't know anything about booting, but I guess this may be useful to try to solve this issue. This was my result:

    Code:
                      Boot Info Script 0.61      [1 April 2012]
    
    
    ============================= Boot Info Summary: ===============================
    
     => Syslinux MBR (3.00-3.35) is installed in the MBR of /dev/sda.
     => Windows is installed in the MBR of /dev/sdb.
    
    sda1: __________________________________________________________________________
    
        File system:       ntfs
        Boot sector type:  Grub2 (v1.99)
        Boot sector info:  Grub2 (v1.99) is installed in the boot sector of sda1
                           and looks at sector 272929384 of the same hard drive
                           for core.img. core.img is at this location and looks
                           for (,msdos3)/boot/grub on this drive. No errors found
                           in the Boot Parameter Block.
        Operating System: 
        Boot files:        /bootmgr /Boot/BCD
    
    sda2: __________________________________________________________________________
    
        File system:       ntfs
        Boot sector type:  Windows Vista/7: NTFS
        Boot sector info:  No errors found in the Boot Parameter Block.
        Operating System:  Windows 7
        Boot files:        /Windows/System32/winload.exe
    
    sda3: __________________________________________________________________________
    
        File system:       ext4
        Boot sector type:  -
        Boot sector info:
        Operating System:  Ubuntu 12.04.1 LTS
        Boot files:        /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
    
    sda4: __________________________________________________________________________
    
        File system:       Extended Partition
        Boot sector type:  -
        Boot sector info:
    
    sda5: __________________________________________________________________________
    
        File system:       swap
        Boot sector type:  -
        Boot sector info:
    
    sda6: __________________________________________________________________________
    
        File system:       ext3
        Boot sector type:  -
        Boot sector info:
        Operating System: 
        Boot files:       
    
    sdb1: __________________________________________________________________________
    
        File system:       vfat
        Boot sector type:  FAT32
        Boot sector info:  According to the info in the boot sector, sdb1 starts
                           at sector 0. But according to the info from fdisk,
                           sdb1 starts at sector 63.
        Operating System: 
        Boot files:       
    
    ============================ Drive/Partition Info: =============================
    
    Drive: sda _____________________________________________________________________
    
    Disk /dev/sda: 500.1 GB, 500107862016 bytes
    255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    
    Partition  Boot  Start Sector    End Sector  # of Sectors  Id System
    
    /dev/sda1    *          2,048       206,847       204,800   7 NTFS / exFAT / HPFS
    /dev/sda2             206,848   209,715,199   209,508,352   7 NTFS / exFAT / HPFS
    /dev/sda3         209,715,200   309,714,943    99,999,744  83 Linux
    /dev/sda4         309,716,990   976,773,119   667,056,130   5 Extended
    /dev/sda5         309,716,992   329,715,711    19,998,720  82 Linux swap / Solaris
    /dev/sda6         329,717,760   976,773,119   647,055,360  83 Linux
    
    
    Drive: sdb _____________________________________________________________________
    
    Disk /dev/sdb: 500.1 GB, 500107862016 bytes
    255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    
    Partition  Boot  Start Sector    End Sector  # of Sectors  Id System
    
    /dev/sdb1                  63   976,768,064   976,768,002   c W95 FAT32 (LBA)
    
    
    "blkid" output: ________________________________________________________________
    
    Device           UUID                                   TYPE       LABEL
    
    /dev/sda1        CC4237E34237D146                       ntfs      
    /dev/sda2        26823AB2823A85F9                       ntfs       Windows
    /dev/sda3        0b278842-032a-4883-becb-b68d3ede9a2a   ext4      
    /dev/sda5        6201e185-e758-44ea-9ccf-c9512fcd46fc   swap      
    /dev/sda6        d30631ad-890f-4bb0-81b2-ddda4ceeeb7d   ext3      
    /dev/sdb1        F345-F8EC                              vfat       STORAGE
    
    ================================ Mount points: =================================
    
    Device           Mount_Point              Type       Options
    
    /dev/sda1        /mnt/sda1                fuseblk    (rw,nosuid,nodev,allow_other,blksize=4096)
    /dev/sda2        /media/Windows           fuseblk    (ro,nosuid,nodev,allow_other,default_permissions,blksize=4096)
    /dev/sda3        /                        ext4       (rw,errors=remount-ro)
    /dev/sda6        /home                    ext3       (rw)
    /dev/sdb1        /media/STORAGE           vfat       (rw,uid=1000,gid=100)
    
    
    =========================== sda3/boot/grub/grub.cfg: ===========================
    
    --------------------------------------------------------------------------------
    #
    # DO NOT EDIT THIS FILE
    #
    # It is automatically generated by grub-mkconfig using templates
    # from /etc/grub.d and settings from /etc/default/grub
    #
    
    ### BEGIN /etc/grub.d/00_header ###
    if [ -s $prefix/grubenv ]; then
      set have_grubenv=true
      load_env
    fi
    set default="0"
    if [ "${prev_saved_entry}" ]; then
      set saved_entry="${prev_saved_entry}"
      save_env saved_entry
      set prev_saved_entry=
      save_env prev_saved_entry
      set boot_once=true
    fi
    
    function savedefault {
      if [ -z "${boot_once}" ]; then
        saved_entry="${chosen}"
        save_env saved_entry
      fi
    }
    
    function recordfail {
      set recordfail=1
      if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
    }
    
    function load_video {
      insmod vbe
      insmod vga
      insmod video_bochs
      insmod video_cirrus
    }
    
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos3)'
    search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
    if loadfont /usr/share/grub/unicode.pf2 ; then
      set gfxmode=auto
      load_video
      insmod gfxterm
      insmod part_msdos
      insmod ext2
      set root='(hd0,msdos3)'
      search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
      set locale_dir=($root)/boot/grub/locale
      set lang=en_US
      insmod gettext
    fi
    terminal_output gfxterm
    if [ "${recordfail}" = 1 ]; then
      set timeout=-1
    else
      set timeout=10
    fi
    ### END /etc/grub.d/00_header ###
    
    ### BEGIN /etc/grub.d/05_debian_theme ###
    set menu_color_normal=white/black
    set menu_color_highlight=black/light-gray
    if background_color 44,0,30; then
      clear
    fi
    ### END /etc/grub.d/05_debian_theme ###
    
    ### BEGIN /etc/grub.d/10_linux ###
    function gfxmode {
        set gfxpayload="${1}"
        if [ "${1}" = "keep" ]; then
            set vt_handoff=vt.handoff=7
        else
            set vt_handoff=
        fi
    }
    if [ "${recordfail}" != 1 ]; then
      if [ -e ${prefix}/gfxblacklist.txt ]; then
        if hwmatch ${prefix}/gfxblacklist.txt 3; then
          if [ ${match} = 0 ]; then
            set linux_gfx_mode=keep
          else
            set linux_gfx_mode=text
          fi
        else
          set linux_gfx_mode=text
        fi
      else
        set linux_gfx_mode=keep
      fi
    else
      set linux_gfx_mode=text
    fi
    export linux_gfx_mode
    if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
    menuentry 'Ubuntu, with Linux 3.2.0-35-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos3)'
        search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
        linux    /boot/vmlinuz-3.2.0-35-generic-pae root=UUID=0b278842-032a-4883-becb-b68d3ede9a2a ro   quiet splash $vt_handoff
        initrd    /boot/initrd.img-3.2.0-35-generic-pae
    }
    menuentry 'Ubuntu, with Linux 3.2.0-35-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos3)'
        search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
        echo    'Loading Linux 3.2.0-35-generic-pae ...'
        linux    /boot/vmlinuz-3.2.0-35-generic-pae root=UUID=0b278842-032a-4883-becb-b68d3ede9a2a ro recovery nomodeset
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-3.2.0-35-generic-pae
    }
    submenu "Previous Linux versions" {
    menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos3)'
        search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
        linux    /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=0b278842-032a-4883-becb-b68d3ede9a2a ro   quiet splash $vt_handoff
        initrd    /boot/initrd.img-3.2.0-23-generic-pae
    }
    menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos3)'
        search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
        echo    'Loading Linux 3.2.0-23-generic-pae ...'
        linux    /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=0b278842-032a-4883-becb-b68d3ede9a2a ro recovery nomodeset
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-3.2.0-23-generic-pae
    }
    }
    ### END /etc/grub.d/10_linux ###
    
    ### BEGIN /etc/grub.d/20_linux_xen ###
    ### END /etc/grub.d/20_linux_xen ###
    
    ### BEGIN /etc/grub.d/20_memtest86+ ###
    menuentry "Memory test (memtest86+)" {
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos3)'
        search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
        linux16    /boot/memtest86+.bin
    }
    menuentry "Memory test (memtest86+, serial console 115200)" {
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos3)'
        search --no-floppy --fs-uuid --set=root 0b278842-032a-4883-becb-b68d3ede9a2a
        linux16    /boot/memtest86+.bin console=ttyS0,115200n8
    }
    ### END /etc/grub.d/20_memtest86+ ###
    
    ### BEGIN /etc/grub.d/30_os-prober ###
    menuentry "Windows 7 (loader) (on /dev/sda1)" --class windows --class os {
        insmod part_msdos
        insmod ntfs
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set=root CC4237E34237D146
        chainloader +1
    }
    ### END /etc/grub.d/30_os-prober ###
    
    ### BEGIN /etc/grub.d/40_custom ###
    # This file provides an easy way to add custom menu entries.  Simply type the
    # menu entries you want to add after this comment.  Be careful not to change
    # the 'exec tail' line above.
    ### END /etc/grub.d/40_custom ###
    
    ### BEGIN /etc/grub.d/41_custom ###
    if [ -f  $prefix/custom.cfg ]; then
      source $prefix/custom.cfg;
    fi
    ### END /etc/grub.d/41_custom ###
    --------------------------------------------------------------------------------
    
    =============================== sda3/etc/fstab: ================================
    
    --------------------------------------------------------------------------------
    # /etc/fstab: static file system information.
    #
    # Use 'blkid' to print the universally unique identifier for a
    # device; this may be used with UUID= as a more robust way to name devices
    # that works even if disks are added and removed. See fstab(5).
    #
    # <file system> <mount point>   <type>  <options>       <dump>  <pass>
    proc                                       /proc           proc  nodev,noexec,nosuid                           0  0 
    # / was on /dev/sda3 during installation
    UUID=0b278842-032a-4883-becb-b68d3ede9a2a  /               ext4  errors=remount-ro                             0  1 
    # /home was on /dev/sda6 during installation
    UUID=d30631ad-890f-4bb0-81b2-ddda4ceeeb7d  /home           ext3  defaults                                      0  2 
    # swap was on /dev/sda5 during installation
    UUID=6201e185-e758-44ea-9ccf-c9512fcd46fc  none            swap  sw                                            0  0 
    /dev/sda2                                  /media/Windows  ntfs  nls=iso8859-1,ro,umask=000,gid=users,uid=jin  0  0 
    /dev/sda1                                  /mnt/sda1       ntfs  defaults                                      0  0 
    /dev/sdb1                                  /media/STORAGE  vfat  uid=jin,gid=users                             0  0 
    --------------------------------------------------------------------------------
    
    =================== sda3: Location of files loaded by Grub: ====================
    
               GiB - GB             File                                 Fragment(s)
    
                   =                boot/grub/core.img                             1
                   =                boot/grub/grub.cfg                             1
                   =                boot/initrd.img-3.2.0-23-generic-pae           3
                   =                boot/initrd.img-3.2.0-35-generic-pae           2
                   =                boot/vmlinuz-3.2.0-23-generic-pae              1
                   =                boot/vmlinuz-3.2.0-35-generic-pae              1
                   =                initrd.img                                     3
                   =                initrd.img.old                                 3
                   =                vmlinuz                                        1
    
    =============================== StdErr Messages: ===============================
    
    xz: (stdin): Compressed data is corrupt
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    And here there is a screenshot with the configuration of my hard drives:


  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: GRUB Windows 7 option is a loop

    You installed grub2's boot loader to the Windows boot partitions partition boot sector. Windows has to have its boot code in NTFS partitions. NTFS does have a backup and testdisk can restore from backup if valid.

    Code:
    sda1: ____________________________________________________
    
        File system:       ntfs
        Boot sector type:  Grub2 (v1.99)
        Boot sector info:  Grub2 (v1.99) is installed in the boot sector of sda1
                           and looks at sector 272929384 of the same hard drive
                           for core.img. core.img is at this location and looks
                           for (,msdos3)/boot/grub on this drive. No errors found
                           in the Boot Parameter Block.
        Operating System: 
        Boot files:        /bootmgr /Boot/BCD
    Fix for most, a few have other issues, better than windows fix in many cases as it also fixes other parameters:
    If win7 use small 'system reserved' NTFS partition instead of the partition where windows was installed for win7
    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

    Since you are only booting Ubuntu thru the grub install in the Windows partition you need to install grub to the MBR. Boot into Ubuntu and run this first:
    sudo grub-install /dev/sda
    Last edited by oldfred; January 5th, 2013 at 08:42 PM.
    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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