Hi Rubi
i set USB HDD at the top of Boot Priority List .
I run Boot info script from Live CD . The follwing is the content of Result.txt file .
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #1 for (,msdos1)/boot/grub.
=> Grub 0.97 is installed in the MBR of /dev/sdb and looks at sector 32636 on
boot drive #1 for the stage2 file. A stage2 file is at this location on
/dev/sdb. Stage2 looks on partition #1 for /grub/grub.conf.
sda1: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 10.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sda2: __________________________________________________ _______________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________ _______________________
File system: swap
Boot sector type: -
Boot sector info:
sdb1: __________________________________________________ _______________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files/dirs: /grub/menu.lst /grub/grub.conf
sdb2: __________________________________________________ _______________________
File system: LVM2_member
Boot sector type: -
Boot sector info:
=========================== 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 End Size Id System
/dev/sda1 * 2,048 390,832,127 390,830,080 83 Linux
/dev/sda2 390,834,174 488,491,007 97,656,834 5 Extended
/dev/sda5 390,834,176 488,491,007 97,656,832 82 Linux swap / Solaris
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 End Size Id System
/dev/sdb1 * 2,048 1,026,047 1,024,000 83 Linux
/dev/sdb2 1,026,048 976,773,119 975,747,072 8e Linux LVM
blkid -c /dev/null: __________________________________________________ __________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 613fc652-49c2-4753-9fc3-c81da28abd2b ext4
/dev/sda2: PTTYPE="dos"
/dev/sda5 c8b35de1-f358-4a34-9cb1-137b8cd03bf3 swap
/dev/sda: PTTYPE="dos"
/dev/sdb1 0f6089d0-a84b-4e65-891d-ecf9842d0623 ext4
/dev/sdb2 NAbtAa-2a77-uMJB-0VNS-ZVj3-DKDC-Ad792S LVM2_member
/dev/sdb: PTTYPE="dos"
============================ "mount | grep ^/dev output: ===========================
Device Mount_Point Type Options
aufs / aufs (rw)
/dev/sr0 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)
=========================== sda1/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 "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
insmod vbe
insmod vga
}
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set 613fc652-49c2-4753-9fc3-c81da28abd2b
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set 613fc652-49c2-4753-9fc3-c81da28abd2b
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ "${recordfail}" = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set 613fc652-49c2-4753-9fc3-c81da28abd2b
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=613fc652-49c2-4753-9fc3-c81da28abd2b ro quiet splash
initrd /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set 613fc652-49c2-4753-9fc3-c81da28abd2b
echo 'Loading Linux 2.6.35-22-generic ...'
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=613fc652-49c2-4753-9fc3-c81da28abd2b ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-22-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set 613fc652-49c2-4753-9fc3-c81da28abd2b
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set 613fc652-49c2-4753-9fc3-c81da28abd2b
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${timeout}" != "x-1" ]; then
if keystatus; then
if keystatus --shift; then
set timeout=-1
else
set timeout=0
fi
else
if sleep --interruptible 3 ; then
set timeout=0
fi
fi
fi
### 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 ###
=============================== sda1/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/sdb1 during installation
UUID=613fc652-49c2-4753-9fc3-c81da28abd2b / ext4 errors=remount-ro 0 1
# swap was on /dev/sdb5 during installation
UUID=c8b35de1-f358-4a34-9cb1-137b8cd03bf3 none swap sw 0 0
=================== sda1: Location of files loaded by Grub: ===================
163.3GB: boot/grub/core.img
43.1GB: boot/grub/grub.cfg
43.2GB: boot/initrd.img-2.6.35-22-generic
163.3GB: boot/vmlinuz-2.6.35-22-generic
43.2GB: initrd.img
163.3GB: vmlinuz
============================= sdb1/grub/grub.conf: =============================
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/mapper/vg_msi-lv_root
# initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=0
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Fedora (2.6.35.6-45.fc14.i686)
root (hd0,0)
kernel /vmlinuz-2.6.35.6-45.fc14.i686 ro root=/dev/mapper/vg_msi-lv_root rd_LVM_LV=vg_msi/lv_root rd_LVM_LV=vg_msi/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet
initrd /initramfs-2.6.35.6-45.fc14.i686.img
=================== sdb1: Location of files loaded by Grub: ===================
.0GB: grub/grub.conf
.0GB: grub/menu.lst
.0GB: grub/stage2
.0GB: initramfs-2.6.35.6-45.fc14.i686.img
.0GB: initrd-plymouth.img
.0GB: vmlinuz-2.6.35.6-45.fc14.i686