Sounds like you have used the grub customizer is this correct? Or some grub tweaker let us know if and what it is if you have. In other words what got you here.
Run this command set from a booted ubuntu live cd. In home will be a results.txt copy and paste all the text from it to a reply.
While the reply is still open highlight all the text and click on the # in the reply panel, then submit reply.
wget -O bootinfoscript 'http://bootinfoscript.git.sourceforge.net/git/gitweb.cgi?p=bootinfoscript/bootinfoscript;a=blob_plain;f=bootinfoscript;hb=HE AD'
chmod a+x bootinfoscript
sudo bash bootinfoscript
wilee-nilee,
The Linux system on my PC is Ubuntu 10.04 LTS 64-bit, the Grub 1.98.
I began to use Ubuntu 10.04 LTS 64-bit about two month ago. Everything seems to be OK, until yesterday, I used synaptic to update one package, amd64-libc6. When the update finished, the PC rebooted by itself and enter a command-line mode, then I found there were a lot of errors showed on the screen and the program stopped running. The last three lines of errors are posted as follows:
udevd[552]: can not read '/lib/udev/rules.d/keyboard-force-release'
udevd[552]: can not read '/lib/udev/rules.d/95-keymap.rules'
udevd[552]: can not read '/lib/udev/rules.d/95-udev-late.rules'
I turned off the power as the PC stopped running anymore and restart the PC, then the start menu of grub missed the Ubuntu item, remaining only test memory. So, I can boot Ubuntu now.
At first, I tried some solutions on the forums, for example, install grub from the LiveCD, modify the file /boot/grub/menu.lst, but all of them didn't work.
I have followed you instruction to generate the RESULT.txt file, and post it as follows.
------------------------------------------------------------------------------------------------------
RESULT.txt
Boot Info Script 0.61 [1 April 2012]
============================= Boot Info Summary: ===============================
=> Grub2 (v1.97-1.98 ) is installed in the MBR of /dev/sda and looks at sector
1 of the same hard drive for core.img. core.img is at this location and
looks in partition 8 for /boot/grub.
=> Windows is installed in the MBR of /dev/sdb.
sda1: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: 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: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Grub2 (v1.97-1.98 )
Boot sector info: Grub2 (v1.97-1.98 ) is installed in the boot sector of
sda5 and looks at sector 1414131840 of the same hard
drive for core.img. core.img is at this location and
looks in partition 256 for /boot/grub. According to
the info in the boot sector, sda5 starts at sector 63.
Operating System:
Boot files:
sda6: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: According to the info in the boot sector, sda6 starts
at sector 2048.
Operating System:
Boot files:
sda7: __________________________________________________ ________________________
File system: swap
Boot sector type: -
Boot sector info:
sda8: __________________________________________________ ________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.04.4 LTS
Boot files: /boot/grub/menu.lst /boot/grub/grub.cfg /etc/fstab
/boot/grub/core.img
sda4: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: According to the info in the boot sector, sda4 has
62916607 sectors, but according to the info from
fdisk, it has 63069615 sectors.
Operating System:
Boot files: /bootmgr /boot/bcd
sdb1: __________________________________________________ ________________________
File system: vfat
Boot sector type: FAT16
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
============================ Drive/Partition Info: =============================
Drive: sda __________________________________________________ ___________________
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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 206,896 211,431,464 211,224,569 7 NTFS / exFAT / HPFS
/dev/sda3 211,431,526 1,890,453,503 1,679,021,978 5 Extended
/dev/sda5 211,431,528 716,997,014 505,565,487 7 NTFS / exFAT / HPFS
/dev/sda6 717,010,944 1,331,410,943 614,400,000 7 NTFS / exFAT / HPFS
/dev/sda7 1,331,412,992 1,350,942,719 19,529,728 82 Linux swap / Solaris
/dev/sda8 1,350,944,768 1,890,453,503 539,508,736 83 Linux
/dev/sda4 1,890,455,552 1,953,525,167 63,069,616 12 Compaq diagnostics
Drive: sdb __________________________________________________ ___________________
Disk /dev/sdb: 530 MB, 530972672 bytes
255 heads, 63 sectors/track, 64 cylinders, total 1037056 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 1,028,159 1,028,097 6 FAT16
"blkid" output: __________________________________________________ ______________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 8640073340072A0F ntfs System Reserved
/dev/sda2 6E04096204092EA1 ntfs
/dev/sda4 30D4AEF0D4AEB80C ntfs LENOVO_PART
/dev/sda5 204EF98A4EF958CC ntfs
/dev/sda6 264205074204DE05 ntfs
/dev/sda7 939d7b99-dbce-499d-97d0-644f12e39e9a swap
/dev/sda8 53113478-2443-4097-9572-8b6eae277d48 ext4
/dev/sdb1 BC27-24A0 vfat CHEN TAO
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sda8 /media/53113478-2443-4097-9572-8b6eae277d48 ext4 (rw,nosuid,nodev,uhelper=udisks)
/dev/sdb1 /media/CHEN TAO vfat (rw,nosuid,nodev,uhelper=udisks,uid=999,gid=999,sh ortname=mixed,dmask=0077,utf8=1,flush)
/dev/sr0 /cdrom iso9660 (ro,noatime)
=========================== sda8/boot/grub/menu.lst: ===========================
--------------------------------------------------------------------------------
debug off
hiddenmenu
default 0
timeout 0
fallback 1
title Ubuntu 10.04, kernel 2.6.32-34-generic
root ()/ubuntu/disks
kernel /boot/vmlinuz-2.6.32-34-generic root=UUID=53113478-2443-4097-9572-8b6eae277d48 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.28-12-generic
### END DEBIAN AUTOMAGIC KERNELS LIST
# This is a divider, added to separate the menu items below from the Debian
# ones.
title Other operating systems:
root
# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sda1
title Windows 7
rootnoverify (hd0,0)
savedefault
chainloader +1
--------------------------------------------------------------------------------
=========================== sda8/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="8"
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,8 )'
search --no-floppy --fs-uuid --set 53113478-2443-4097-9572-8b6eae277d48
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0, 8 )'
search --no-floppy --fs-uuid --set 53113478-2443-4097-9572-8b6eae277d48
set locale_dir=($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 ###
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,8 )'
search --no-floppy --fs-uuid --set 53113478-2443-4097-9572-8b6eae277d48
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,8 )'
search --no-floppy --fs-uuid --set 53113478-2443-4097-9572-8b6eae277d48
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###
--------------------------------------------------------------------------------
=============================== sda8/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
/dev/sda8 / ext4 errors=remount-ro 0 1
/dev/sda7 none swap sw 0 0
--------------------------------------------------------------------------------
=================== sda8: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
674.310634613 = 724.035530752 boot/grub/core.img 1
674.307628632 = 724.032303104 boot/grub/grub.cfg 1
674.383792877 = 724.114083840 boot/grub/menu.lst 1
646.546779633 = 694.224318464 boot/initrd 1
646.561748505 = 694.240391168 boot/initrd.gz 1
674.748901367 = 724.506116096 boot/vmlinuz 1
=============================== StdErr Messages: ===============================
mdadm: No arrays found in config file or automatically