here's my boot info script:
=> Syslinux MBR (3.00-3.35) is installed in the MBR of /dev/sda.
=> Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and uses an
embedded config file:
---------------------------------------------------------------------------
search.fs_uuid 63675297-c4a3-4a84-9326-96276b32eced root
set prefix=($root)/grub
---------------------------------------------------------------------------
-----.
sda1: __________________________________________________ ________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files: /grub/grub.cfg /grub/core.img
sda2: __________________________________________________ ________________________
File system: swap
Boot sector type: -
Boot sector info:
sda3: __________________________________________________ ________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 12.04 LTS
Boot files: /etc/fstab
sda4: __________________________________________________ ________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sdb1: __________________________________________________ ________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sdb5: __________________________________________________ ________________________
File system: ext3
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
============================ Drive/Partition Info: =============================
Drive: sda __________________________________________________ ___________________
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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 1,781,759 1,779,712 83 Linux
/dev/sda2 1,781,760 9,973,759 8,192,000 82 Linux swap / Solaris
/dev/sda3 9,973,760 112,861,183 102,887,424 83 Linux
/dev/sda4 112,861,184 312,580,095 199,718,912 83 Linux
Drive: sdb __________________________________________________ ___________________
Disk /dev/sdb: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 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 * 63 156,296,384 156,296,322 5 Extended
/dev/sdb5 126 156,296,384 156,296,259 83 Linux
"blkid" output: __________________________________________________ ______________
Device UUID TYPE LABEL
/dev/sda1 63675297-c4a3-4a84-9326-96276b32eced ext4
/dev/sda2 a9ab7e65-c15a-42ed-a995-11c4a7a3ae4f swap
/dev/sda3 5391fa80-4506-4b8c-bcad-5e28fdaaffa5 ext4
/dev/sda4 4783159a-22f1-450c-bd79-8c8fc6191d5d ext4
/dev/sdb5 daa354e7-9112-4fbc-8f54-bd36ad083785 ext3
/dev/sr0 iso9660 CDROM
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sda1 /boot ext4 (rw)
/dev/sda3 / ext4 (rw,errors=remount-ro)
/dev/sda4 /home ext4 (rw)
============================= sda1/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 "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}
insmod part_msdos
insmod ext2
set root='(hd0,msdos3)'
search --no-floppy --fs-uuid --set=root 5391fa80-4506-4b8c-bcad-5e28fdaaffa5
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 63675297-c4a3-4a84-9326-96276b32eced
set locale_dir=($root)/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 3.2.0-23-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,msdos1)'
search --no-floppy --fs-uuid --set=root 63675297-c4a3-4a84-9326-96276b32eced
linux /vmlinuz-3.2.0-23-generic-pae root=UUID=5391fa80-4506-4b8c-bcad-5e28fdaaffa5 ro quiet splash $vt_handoff
initrd /initrd.img-3.2.0-23-generic-pae
}
menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 63675297-c4a3-4a84-9326-96276b32eced
echo 'Loading Linux 3.2.0-23-generic-pae ...'
linux /vmlinuz-3.2.0-23-generic-pae root=UUID=5391fa80-4506-4b8c-bcad-5e28fdaaffa5 ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.2.0-23-generic-pae
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 63675297-c4a3-4a84-9326-96276b32eced
linux16 /memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 63675297-c4a3-4a84-9326-96276b32eced
linux16 /memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${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: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
= grub/core.img 1
= grub/grub.cfg 1
= initrd.img-3.2.0-23-generic-pae 2
= vmlinuz-3.2.0-23-generic-pae 1
=============================== 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=5391fa80-4506-4b8c-bcad-5e28fdaaffa5 / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=63675297-c4a3-4a84-9326-96276b32eced /boot ext4 defaults 0 2
# /home was on /dev/sda4 during installation
UUID=4783159a-22f1-450c-bd79-8c8fc6191d5d /home ext4 defaults 0 2
# swap was on /dev/sda2 during installation
UUID=a9ab7e65-c15a-42ed-a995-11c4a7a3ae4f none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
--------------------------------------------------------------------------------
=================== sda3: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
= initrd.img 2
= 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