UJ-x51
May 7th, 2011, 08:17 PM
A couple of months ago I bought a new Dell laptop with Windows 7 pre-installed. Rather than strip the hard drive and go with Ubuntu exclusively, I left W7 on and set up Ubuntu 10.04 as a dual boot installation. All was well for a month or more and now suddenly W7 won't boot. The Windows error message I get is “The boot selection failed because a required device is inaccessible.” I've purged and reinstalled Grub2 several times with no luck. Also tried Windows fixmbr which allowed W7 to boot but made Ubuntu inaccessible.
Below is the output of the boot_info_script. Any help would be appreciated.
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #7 for /boot/grub.
sda1: __________________________________________________ _______________________
File system: vfat
Boot sector type: Dell Utility: Fat16
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /COMMAND.COM
sda2: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr /Boot/BCD
sda3: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /bootmgr /Boot/BCD /Windows/System32/winload.exe
sda4: __________________________________________________ _______________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________ _______________________
File system: swap
Boot sector type: -
Boot sector info:
sda6: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files/dirs:
sda7: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.04.2 LTS
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
=========================== Drive/Partition Info: =============================
Drive: sda ___________________ __________________________________________________ ___
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start End Size Id System
/dev/sda1 1,331,820,630 1,332,029,474 208,845 6 FAT16
/dev/sda2 1,332,029,475 1,362,745,754 30,716,280 7 HPFS/NTFS
/dev/sda3 * 1,362,745,755 1,465,144,064 102,398,310 7 HPFS/NTFS
/dev/sda4 2,046 1,331,820,629 1,331,818,584 5 Extended
/dev/sda5 1,326,487,050 1,331,820,629 5,333,580 82 Linux swap / Solaris
/dev/sda6 183,060,738 1,326,487,049 1,143,426,312 83 Linux
/dev/sda7 2,048 183,060,479 183,058,432 83 Linux
blkid -c /dev/null: __________________________________________________ __________
Device UUID TYPE LABEL
/dev/ramzswap0 swap
/dev/sda1 3030-3030 vfat DELLUTILITY
/dev/sda2 CC70378A703779F2 ntfs Recovery
/dev/sda3 AC7C4EC27C4E86D4 ntfs OS
/dev/sda4: PTTYPE="dos"
/dev/sda5 efe36af0-d4ce-41e7-8bd9-eefe11e01bcf swap
/dev/sda6 ccf4bce3-bb1f-4f67-af25-ab7d190ccaaf ext4 HomePartition
/dev/sda7 cbed8558-e5f1-4863-8d17-1cf389b31a08 ext4
/dev/sda: PTTYPE="dos"
============================ "mount | grep ^/dev output: ===========================
Device Mount_Point Type Options
/dev/sda7 / ext4 (rw,errors=remount-ro)
/dev/sda6 /home ext4 (rw)
=========================== sda7/boot/grub/grub.cfg: ===========================
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/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
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
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
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.32-31-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
linux /boot/vmlinuz-2.6.32-31-generic root=UUID=cbed8558-e5f1-4863-8d17-1cf389b31a08 ro quiet splash
initrd /boot/initrd.img-2.6.32-31-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-31-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
echo 'Loading Linux 2.6.32-31-generic ...'
linux /boot/vmlinuz-2.6.32-31-generic root=UUID=cbed8558-e5f1-4863-8d17-1cf389b31a08 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-31-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
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/sda2)" {
insmod ntfs
set root='(hd0,2)'
search --no-floppy --fs-uuid --set cc70378a703779f2
chainloader +1
}
menuentry "Windows 7 (loader) (on /dev/sda3)" {
insmod ntfs
set root='(hd0,3)'
search --no-floppy --fs-uuid --set ac7c4ec27c4e86d4
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.
menuentry "Windows 7 TEST (loader) (on /dev/sda3)" {
insmod ntfs
set root='(hd0,3)'
search --no-floppy --fs-uuid --set ac7c4ec27c4e86d4
chainloader +2
}
### END /etc/grub.d/40_custom ###
=============================== sda7/etc/fstab: ===============================
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' 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/sda7 during installation
UUID=cbed8558-e5f1-4863-8d17-1cf389b31a08 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=ccf4bce3-bb1f-4f67-af25-ab7d190ccaaf /home ext4 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=efe36af0-d4ce-41e7-8bd9-eefe11e01bcf none swap sw 0 0
=================== sda7: Location of files loaded by Grub: ===================
2.2GB: boot/grub/core.img
34.7GB: boot/grub/grub.cfg
33.1GB: boot/initrd.img-2.6.32-31-generic
2.5GB: boot/vmlinuz-2.6.32-31-generic
33.1GB: initrd.img
2.5GB: vmlinuz
Below is the output of the boot_info_script. Any help would be appreciated.
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #7 for /boot/grub.
sda1: __________________________________________________ _______________________
File system: vfat
Boot sector type: Dell Utility: Fat16
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /COMMAND.COM
sda2: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr /Boot/BCD
sda3: __________________________________________________ _______________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files/dirs: /bootmgr /Boot/BCD /Windows/System32/winload.exe
sda4: __________________________________________________ _______________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________ _______________________
File system: swap
Boot sector type: -
Boot sector info:
sda6: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files/dirs:
sda7: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.04.2 LTS
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
=========================== Drive/Partition Info: =============================
Drive: sda ___________________ __________________________________________________ ___
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
Partition Boot Start End Size Id System
/dev/sda1 1,331,820,630 1,332,029,474 208,845 6 FAT16
/dev/sda2 1,332,029,475 1,362,745,754 30,716,280 7 HPFS/NTFS
/dev/sda3 * 1,362,745,755 1,465,144,064 102,398,310 7 HPFS/NTFS
/dev/sda4 2,046 1,331,820,629 1,331,818,584 5 Extended
/dev/sda5 1,326,487,050 1,331,820,629 5,333,580 82 Linux swap / Solaris
/dev/sda6 183,060,738 1,326,487,049 1,143,426,312 83 Linux
/dev/sda7 2,048 183,060,479 183,058,432 83 Linux
blkid -c /dev/null: __________________________________________________ __________
Device UUID TYPE LABEL
/dev/ramzswap0 swap
/dev/sda1 3030-3030 vfat DELLUTILITY
/dev/sda2 CC70378A703779F2 ntfs Recovery
/dev/sda3 AC7C4EC27C4E86D4 ntfs OS
/dev/sda4: PTTYPE="dos"
/dev/sda5 efe36af0-d4ce-41e7-8bd9-eefe11e01bcf swap
/dev/sda6 ccf4bce3-bb1f-4f67-af25-ab7d190ccaaf ext4 HomePartition
/dev/sda7 cbed8558-e5f1-4863-8d17-1cf389b31a08 ext4
/dev/sda: PTTYPE="dos"
============================ "mount | grep ^/dev output: ===========================
Device Mount_Point Type Options
/dev/sda7 / ext4 (rw,errors=remount-ro)
/dev/sda6 /home ext4 (rw)
=========================== sda7/boot/grub/grub.cfg: ===========================
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/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
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
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
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.32-31-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
linux /boot/vmlinuz-2.6.32-31-generic root=UUID=cbed8558-e5f1-4863-8d17-1cf389b31a08 ro quiet splash
initrd /boot/initrd.img-2.6.32-31-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-31-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
echo 'Loading Linux 2.6.32-31-generic ...'
linux /boot/vmlinuz-2.6.32-31-generic root=UUID=cbed8558-e5f1-4863-8d17-1cf389b31a08 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-31-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set cbed8558-e5f1-4863-8d17-1cf389b31a08
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/sda2)" {
insmod ntfs
set root='(hd0,2)'
search --no-floppy --fs-uuid --set cc70378a703779f2
chainloader +1
}
menuentry "Windows 7 (loader) (on /dev/sda3)" {
insmod ntfs
set root='(hd0,3)'
search --no-floppy --fs-uuid --set ac7c4ec27c4e86d4
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.
menuentry "Windows 7 TEST (loader) (on /dev/sda3)" {
insmod ntfs
set root='(hd0,3)'
search --no-floppy --fs-uuid --set ac7c4ec27c4e86d4
chainloader +2
}
### END /etc/grub.d/40_custom ###
=============================== sda7/etc/fstab: ===============================
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' 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/sda7 during installation
UUID=cbed8558-e5f1-4863-8d17-1cf389b31a08 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=ccf4bce3-bb1f-4f67-af25-ab7d190ccaaf /home ext4 defaults 0 2
# swap was on /dev/sda5 during installation
UUID=efe36af0-d4ce-41e7-8bd9-eefe11e01bcf none swap sw 0 0
=================== sda7: Location of files loaded by Grub: ===================
2.2GB: boot/grub/core.img
34.7GB: boot/grub/grub.cfg
33.1GB: boot/initrd.img-2.6.32-31-generic
2.5GB: boot/vmlinuz-2.6.32-31-generic
33.1GB: initrd.img
2.5GB: vmlinuz