RAID5 damaged - cannot read superblock

Hi, 

I have been successfully running a RAID5 for a long time now. It the last
week the computer running the RAID crashed, probably because of too high
temperature. 

The disk configuration is as follows: 

/dev/hda1 - ext2 - /boot
/dev/hda2 - swap 
/dev/hda3 - reiserfs - /
/dev/hdc1 - linux raid auto
/dev/hde1 - linux raid auto 
/dev/hdg1 - linux raid auto

The three RAID partitions run as a RAID5 (/dev/md0) with LVM on top
(/dev/raid5storage/lvol1) and the ext2 filesystem. 

After the crash I could not boot linux. After some repairing I got the root 
partiotion boot (some shared library was damaged). The system booted
up, the RAID reconstructed and I could successfully e2fsck
/dev/raid5storage/lvol1.

The I decided to make a partiotion on the first disk to back some things
that are on the RAID up. I did

# fdisk /dev/hda
:n (new)
... (/dev/hda4, 55GB)
:w (write and exit)
#

The partition did not show up under /dev/hda4 immediatly, so I rebooted the
system. 
After that the RAID started running the reconstruction again and e2fsck told
me: 

/dev/raid5storage/lvol1: UNEXPECTED INCONSISTENCY; run fsck MANUALLY
/dev/raid4storage/lvol1: Block bitmap for group 141 is no in group (block
32768)
fsck.ext2 /dev/raid5storage/lvol1 failed (status 4)! run it manually!

I did that: 
# e2fsck /dev/raid5storage/lvol1
Group descriptors look bad... trying to backup blocks...
e2fsck: Bad magic number in super-block whily trying to open
/dev/raid5storage/lvol1

The superblock could not be read or does not describe a correct ext2 file
system. 
...

I have no idea why the superbock is damaged, since I did not repartition any

of the disks in the RAID. 

Can somebody please help me? I need to recover the data.

Thanks in advance. 

Eddy 








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