Grub out of disk on single boot machine.

[hcker2000]

Ok guys I went from 11.10 to 12.04 via upgrade. That brought me to the grub out of disk> prompt.

I said "oh well" and did a clean install of ubuntu 12.04 32bit and am still getting the same grub out of disk> prompt.

I have tried Boot Repair (https://help.ubuntu.com/community/Boot-Repair) and the instructions at https://help.ubuntu.com/community/Grub2 in section 8.5 with no luck.

I'm installing to the 80 gig drive and need to make sure the raid disks dont get messed with as all my important data is on there.

Thanks in advance.

Here is my boot info.


Boot Info Script 0.61 [1 April 2012]


============================= Boot Info Summary: ===============================

=> Grub2 (v1.99) 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
for (,msdos1)/boot/grub on this drive.
=> No boot loader is installed in the MBR of /dev/sdb.

sda1: __________________________________________________ ________________________

File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 12.04 LTS
Boot files: /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:
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: unknown filesystem type ''

sdb3: __________________________________________________ ________________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: unknown filesystem type ''
mount: unknown filesystem type ''

sdc: __________________________________________________ _________________________

File system: linux_raid_member
Boot sector type: -
Boot sector info:

sdd: __________________________________________________ _________________________

File system: linux_raid_member
Boot sector type: -
Boot sector info:

sde: __________________________________________________ _________________________

File system: linux_raid_member
Boot sector type: -
Boot sector info:

============================ Drive/Partition Info: =============================

Drive: sda __________________________________________________ ___________________

Disk /dev/sda: 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/sda1 * 2,048 148,439,039 148,436,992 83 Linux
/dev/sda2 148,441,086 156,301,311 7,860,226 5 Extended
/dev/sda5 148,441,088 156,301,311 7,860,224 82 Linux swap / Solaris


Drive: sdb __________________________________________________ ___________________

Disk /dev/sdb: 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

Invalid MBR Signature found.
/dev/sdb1 1,024 2,047 1,024 0 Empty
/dev/sdb3 1,024 2,047 1,024 0 Empty


"blkid" output: __________________________________________________ ______________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 38adca0f-b96b-4732-8bb4-5292ade2d5a6 ext4
/dev/sda5 8ed3cda4-aaa3-49f4-9aff-f692560fc7db swap
/dev/sdb c0d1562c-c56a-d224-dc95-0017ef97e63b linux_raid_member
/dev/sdc c0d1562c-c56a-d224-dc95-0017ef97e63b linux_raid_member
/dev/sdd c0d1562c-c56a-d224-dc95-0017ef97e63b linux_raid_member
/dev/sde c0d1562c-c56a-d224-dc95-0017ef97e63b linux_raid_member
/dev/sr0 iso9660 Ubuntu 12.04 LTS i386

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sr0 /cdrom iso9660 (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 video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 38adca0f-b96b-4732-8bb4-5292ade2d5a6
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 38adca0f-b96b-4732-8bb4-5292ade2d5a6
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 3.2.0-23-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 38adca0f-b96b-4732-8bb4-5292ade2d5a6
linux /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=38adca0f-b96b-4732-8bb4-5292ade2d5a6 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,msdos1)'
search --no-floppy --fs-uuid --set=root 38adca0f-b96b-4732-8bb4-5292ade2d5a6
echo 'Loading Linux 3.2.0-23-generic-pae ...'
linux /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=38adca0f-b96b-4732-8bb4-5292ade2d5a6 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,msdos1)'
search --no-floppy --fs-uuid --set=root 38adca0f-b96b-4732-8bb4-5292ade2d5a6
linux16 /boot/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 38adca0f-b96b-4732-8bb4-5292ade2d5a6
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' 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/sda1 during installation
UUID=38adca0f-b96b-4732-8bb4-5292ade2d5a6 / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=8ed3cda4-aaa3-49f4-9aff-f692560fc7db none swap sw 0 0
--------------------------------------------------------------------------------

=================== sda1: 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 2
= boot/vmlinuz-3.2.0-23-generic-pae 2
= vmlinuz 2

======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown BootLoader on sdb1


Unknown BootLoader on sdb3



=============================== 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
hexdump: /dev/sdb1: No such file or directory
hexdump: /dev/sdb1: No such file or directory
hexdump: /dev/sdb3: No such file or directory
hexdump: /dev/sdb3: No such file or directory

[darkod]

I don't know if it related to the out of disk error, but if sdb is in the array too you may already have a problem. Did you notice this in the results:

isk /dev/sdb: 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
Invalid MBR Signature found.
/dev/sdb1 1,024 2,047 1,024 0 Empty
/dev/sdb3 1,024 2,047 1,024 0 Empty

[hcker2000]

Even if some thing were to get messed up with one drive I can always rebuild that drive from the other three disks so long as they are not messed up. Not to mention I think raid would respect the mbr portion of the disks so even if some thing did happen to that area I'm not sure it would effect the raid.

I'm hoping some one can help with the out of disk. I'm also going to try unplugging the raid drives and just leave the 80 gig and dvd drive plugged in and see if it will boot and if not re-install with only those plugged in.

[hcker2000]

A bump and a link to some more info for any one else running into this issue. So far nothing I have tried has worked so I'm going to run a disk check on the disk itself.

http://www.dudek.org/blog/220

[hcker2000]

I switched drives and re-installed and every thing works fine so some thing weird was going on with that 80 gig drive.