[CentOS] domU corrupt after server crash, help needed trying to recover domU LVM

Hi all,

One of our Dell servers has failed badly, and one of the domU's has been
corrupted in the process. It boots up to a point and then gives me a kernel
panic:

Loading dm-zero.ko module
Loading dm-snapshot.ko module
Scanning and configuring dmraid supported devices
Scanning logical volumes
  Reading all physical volumes.  This may take a while...
  No volume groups found
Activating logical volumes
  Volume group "VolGroup00" not found
Creating root device.
Mounting root filesystem.
mount: could not find filesystem '/dev/root'
Setting up other filesystems.
Setting up new root fs
setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!


It shows up as a Zombie:

[root at xen ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0     1439     1 r-----    329.0
Zombie-hfserver2                          15     1024     1 ----c-      0.5
hfdns02                                   10      519     2 r-----   1552.8


I can't mount either:

root at xen ~]# mount /dev/data/hf
hfdns02    hfserver2
[root at xen ~]# mount /dev/data/hfserver2 /mnt/cpanel/
mount: you must specify the filesystem type
[root at xen ~]# mount -o loop /dev/data/hfserver2 /mnt/cpanel/
mount: you must specify the filesystem type

Here's the output of the LVM partitions:

[root at xen ~]# lvscan
  ACTIVE            '/dev/data/cpanel002' [100.00 GB] inherit
  ACTIVE            '/dev/data/windows2003_web' [30.00 GB] inherit
  ACTIVE            '/dev/data/storage' [50.00 GB] inherit
  ACTIVE   Original '/dev/data/hfserver2' [30.00 GB] inherit
  ACTIVE            '/dev/data/hfdns02' [30.00 GB] inherit
  ACTIVE            '/dev/data/pluto' [30.00 GB] inherit
  ACTIVE   Snapshot '/dev/data/pluto_s' [30.00 GB] inherit
  ACTIVE            '/dev/system/root' [39.06 GB] inherit
  ACTIVE            '/dev/system/swap' [9.75 GB] inherit
[root at xen ~]# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "data" using metadata type lvm2
  Found volume group "system" using metadata type lvm2
[root at xen ~]#


Does anyone know how to fix a LVM like this?

-- 
Kind Regards
Rudi Ahlers
CEO, SoftDux Hosting
Web: http://www.SoftDux.com
Office: 087 805 9573
Cell: 082 554 7532
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