kernel panic after fresh install

Rajinder Yadav devguy.ca-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
Sat Nov 6 16:37:34 UTC 2010


Guys I am having a problem after a fresh installed of Xubuntu 10.10 on 
my old server. I get a kernel panic, the 1st line of the message says:

Kernel panic - not syncing: VFS: Unable to mount root fs on 
unknown-block(0,0)

Here is a copy of the boot info script output, can someone tell me how I 
might be able to get my system to bootup? I am able to boot into my 
system and mount my root / filesystem.


                 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.

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:  Unknown
     Boot sector info:

sda5: 
_________________________________________________________________________

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

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

Drive: sda ___________________ 
_____________________________________________________

Disk /dev/sda: 30.8 GB, 30758289408 bytes
255 heads, 63 sectors/track, 3739 cylinders, total 60074784 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    59,887,615    59,885,568  83 Linux
/dev/sda2          59,889,662    60,073,983       184,322   5 Extended
/dev/sda5          59,889,664    60,073,983       184,320  82 Linux swap 
/ Solaris


blkid -c /dev/null: 
____________________________________________________________

Device           UUID                                   TYPE       LABEL 


/dev/sda1        54f645ad-c340-4618-9657-39ceade647a7   ext4       root 

/dev/sda2: PTTYPE="dos"
/dev/sda5        8a9cba64-836f-4bff-abc0-46d53200658d   swap 

/dev/sda: PTTYPE="dos"

============================ "mount | grep ^/dev  output: 
===========================

Device           Mount_Point              Type       Options

/dev/sda1        /                        ext4 
(rw,relatime,errors=remount-ro,barrier=1,data=ordered)
/dev/scd0        /media/cdrom             iso9660    (ro,relatime)


=========================== 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='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 54f645ad-c340-4618-9657-39ceade647a7
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='(hd0,msdos1)'
search --no-floppy --fs-uuid --set 54f645ad-c340-4618-9657-39ceade647a7
set locale_dir=($root)/boot/grub/locale
set lang=C.UTF-8
insmod gettext
if [ "${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='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set 54f645ad-c340-4618-9657-39ceade647a7
	linux	/boot/vmlinuz-2.6.35-22-generic 
root=UUID=54f645ad-c340-4618-9657-39ceade647a7 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='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set 54f645ad-c340-4618-9657-39ceade647a7
	echo	'Loading Linux 2.6.35-22-generic ...'
	linux	/boot/vmlinuz-2.6.35-22-generic 
root=UUID=54f645ad-c340-4618-9657-39ceade647a7 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='(hd0,msdos1)'
	search --no-floppy --fs-uuid --set 54f645ad-c340-4618-9657-39ceade647a7
	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 54f645ad-c340-4618-9657-39ceade647a7
	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/sda1 during installation
UUID=54f645ad-c340-4618-9657-39ceade647a7 /               ext4 
errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=8a9cba64-836f-4bff-abc0-46d53200658d none            swap    sw 
           0       0

=================== sda1: Location of files loaded by Grub: 
===================


   10.8GB: boot/grub/core.img
   10.8GB: boot/grub/grub.cfg
     .4GB: boot/initrd.img-2.6.35-22-generic
   10.8GB: boot/vmlinuz-2.6.35-22-generic
     .4GB: initrd.img
   10.8GB: vmlinuz
=========================== Unknown MBRs/Boot Sectors/etc 
=======================

Unknown BootLoader  on sda2

00000000  a4 ff 8b 54 24 54 89 14  24 ff d0 84 c0 74 b8 8b 
|...T$T..$....t..|
00000010  4c 24 78 8b 01 89 0c 24  ff 90 c8 00 00 00 8b 4c 
|L$x....$.......L|
00000020  24 70 8b 11 8b 4c 24 74  89 44 24 0c 8b 44 24 48 
|$p...L$t.D$..D$H|
00000030  89 4c 24 04 89 44 24 08  8b 44 24 70 89 04 24 ff 
|.L$..D$..D$p..$.|
00000040  92 94 00 00 00 83 c4 5c  5b 5e 5f 5d c3 8b 54 24 
|.......\[^_]..T$|
00000050  70 8b 02 89 14 24 ff 90  90 00 00 00 89 44 24 58 
|p....$.......D$X|
00000060  e9 f9 fd ff ff 90 8d 76  00 8d bc 27 00 00 00 00 
|.......v...'....|
00000070  83 ec 4c 89 74 24 40 8b  74 24 54 89 5c 24 3c 89 
|..L.t$@.t$T.\$<.|
00000080  7c 24 44 89 6c 24 48 8b  06 e8 39 a9 a5 ff 81 c3 
||$D.l$H...9.....|
00000090  8e 39 74 00 89 34 24 ff  90 d8 05 00 00 89 44 24 
|.9t..4$.......D$|
000000a0  34 8b 06 89 34 24 ff 90  e0 05 00 00 89 44 24 38 
|4...4$.......D$8|
000000b0  8b 06 89 34 24 ff 90 e8  05 00 00 89 c5 8b 06 89 
|...4$...........|
000000c0  34 24 ff 90 f0 05 00 00  89 c7 8b 06 89 34 24 ff 
|4$...........4$.|
000000d0  90 d0 05 00 00 89 7c 24  1c 89 6c 24 18 89 34 24 
|......|$..l$..4$|
000000e0  89 44 24 2c 8b 44 24 6c  89 44 24 28 8b 44 24 68 
|.D$,.D$l.D$(.D$h|
000000f0  89 44 24 24 8b 44 24 64  89 44 24 20 8b 44 24 38  |.D$$.D$d.D$ 
.D$8|
00000100  89 44 24 14 8b 44 24 34  89 44 24 10 8b 44 24 60 
|.D$..D$4.D$..D$`|
00000110  89 44 24 0c 8b 44 24 5c  89 44 24 08 8b 44 24 58 
|.D$..D$\.D$..D$X|
00000120  89 44 24 04 e8 7b 1c a5  ff 8b 5c 24 3c 8b 74 24 
|.D$..{....\$<.t$|
00000130  40 8b 7c 24 44 8b 6c 24  48 83 c4 4c c3 90 66 90 
|@.|$D.l$H..L..f.|
00000140  55 57 56 53 e8 7e a8 a5  ff 81 c3 d3 38 74 00 83 
|UWVS.~......8t..|
00000150  ec 5c 8b 83 c0 c2 ff ff  89 04 24 e8 74 91 a3 ff 
|.\........$.t...|
00000160  8b b3 40 5f ff ff 89 34  24 e8 46 f0 a3 ff 89 44 
|.. at _...4$.F....D|
00000170  24 3c 89 04 24 e8 ca 83  a5 ff 89 34 24 e8 32 f0 
|$<..$......4$.2.|
00000180  a3 ff 89 c5 89 04 24 e8  b8 83 a5 ff 8b 54 24 70 
|......$......T$p|
00000190  8b 02 89 14 24 ff 90 bc  03 00 00 89 34 24 89 44 
|....$.......4$.D|
000001a0  24 58 e8 0d f0 a3 ff 89  44 24 38 89 04 24 e8 91 
|$X......D$8..$..|
000001b0  83 a5 ff 8b 4c 24 70 8b  01 89 0c 24 ff 50 00 fe 
|....L$p....$.P..|
000001c0  ff ff 82 fe ff ff 02 00  00 00 00 d0 02 00 00 00 
|................|
000001d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00 
|................|
*
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa 
|..............U.|
00000200



-- 
Kind Regards,
Rajinder Yadav | DevMentor.org | Do Good! ~ Share Freely

GNU/Linux: 2.6.35-22-generic
Kubuntu x86_64 10.10 | KDE 4.5.1
Ruby 1.9.2p0 | Rails 3.0.1
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