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utopiatw
July 15th, 2012, 05:59 AM
Dear all:
My ubuntu server don't work for some unknown reason.
When the server boot, the screen show:

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

And I had used the "Boot Info Script" to produce the "RESULTS.txt" and paste it below.

Could anyone tell me what's wrong with my server, and how to solve the problem?

Many thanks in advance!

----------------------------- Begin of RESULTS.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 1 for /grub.

sda1: __________________________________________________ ________________________

File system: ext2
Boot sector type: -
Boot sector info:
Operating System:
Boot files:

sda2: __________________________________________________ ________________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sda5: __________________________________________________ ________________________

File system: LVM2_member
Boot sector type: -
Boot sector info:

ee-root': __________________________________________________ _____________

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

ee-swap_1': __________________________________________________ ___________

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

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

Drive: sda __________________________________________________ ___________________

Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 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 * 2,048 499,711 497,664 83 Linux
/dev/sda2 501,758 41,940,991 41,439,234 5 Extended
/dev/sda5 501,760 41,940,991 41,439,232 8e Linux LVM


"blkid" output: __________________________________________________ ______________

Device UUID TYPE LABEL

/dev/mapper/ee-root ef97e75a-f396-414e-95fa-c03bb9a1c491 ext4
/dev/mapper/ee-swap_1 278c3bf6-ca57-4cc8-8ade-cdc45d2947c8 swap
/dev/sda1 ed4f4ea4-0d72-42fa-962f-ec64328a1116 ext2
/dev/sda5 LspBW7-uI2C-kXnt-Jlo0-Qcad-uuHW-dH1mCo LVM2_member

========================= "ls -R /dev/mapper/" output: =========================

/dev/mapper:
ee-root
ee-swap_1
control

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

Device Mount_Point Type Options

/dev/mapper/ee-root / ext4 (rw,errors=remount-ro)
/dev/sda1 /boot ext2 (rw)


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

Unknown BootLoader on ee-root'


Unknown BootLoader on ee-swap_1'



=============================== StdErr Messages: ===============================

One or more specified logical volume(s) not found.
One or more specified logical volume(s) not found.
One or more specified logical volume(s) not found.
hexdump: /dev/mapper/ee-root': No such file or directory
hexdump: /dev/mapper/ee-root': No such file or directory
One or more specified logical volume(s) not found.
One or more specified logical volume(s) not found.
One or more specified logical volume(s) not found.
hexdump: /dev/mapper/ee-swap_1': No such file or directory
hexdump: /dev/mapper/ee-swap_1': No such file or directory

----------------------------- End of RESULTS.txt ---------------------------------------------

dino99
July 15th, 2012, 02:15 PM
is it the same problem when you try booting in recovery mode or with an other kernel ?