Corrupted journal in a Linux LVM How to recover


 
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# 8  
Old 01-28-2009
Have you considered something like Linux Data Recovery Software - Data Recovery Tools ?

Linux Data Recovery Software Tools. Recover Linux Partition Data. LVM Recovery

Also, see: Recovering lost ext2 Linux filesystems

http://www.unixwiz.net/techtips/recovering-ext2.html
# 9  
Old 01-28-2009
Before you do anything drastic, did you try locating a good superblock?

Linux maintains multiple copies of the superblock in every file system and you can use backup copies to restore a damaged primary super block.

For example, the following command displays primary and backup superblock location on /dev/sda2:

Code:
dumpe3fs /dev/hda2 | grep -i superblock

(or dumpe2fs)
# 10  
Old 01-28-2009
Yes I have been trying to use this product. The Linux based version keeps locking up.
The windows version reports invalid group descriptor block.

Trying other vendors products now.
# 11  
Old 01-28-2009
What complicates this is that you are running a logical volume.

I don't think these ext2/3 recovery tools are designed to work against logical volumes, unfortunately.
# 12  
Old 01-28-2009
Neo,

Yes I did try alternate superblocks

Running that command though gives an error:

bad magic number in superblock while trying to open /dev/sda2
Couldn't find valid filesystem superblock
# 13  
Old 01-28-2009
Quote:
Originally Posted by ccj4467
bad magic number in superblock while trying to open /dev/sda2
Couldn't find valid filesystem superblock
I only used /dev/sda2 as an example.

You need to use your device file ..... not sure if this will work (more than likely not), but can you try:

Code:
dumpe3fs /dev/VolGroup00/LogVol00 | grep -i superblock

# 14  
Old 01-28-2009
Neo,

I am getting that impression about these tools. May have to go to a professional for this. Hate to do as we really don't have the budget.
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