Re: fsck ate my ext4 home partition, help!?

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On Mon, 4 May 2009, Marcel Partap wrote:
> check over it. Unmounting went successful, however fsck complained about 
> /dev/sdd4 still being mounted. After confirming (lsof, mtab, empty mount 

Have you checked /proc/mounts? mtab could be stale, lsof not seeing 
everything and the "empty mountpoint" could be some other mount on top of 
/home.

> previous run of e2fsck with the -n was showing a bunch of stuff to fix, 

Do you still have that e2fsck output?

> revealed the havoc that was done: ls -laR showed abundant I/O errors, 

Again: error messages would be helpful.

> If someone can actually help me to get it back in the state it was
> before invoking e2fsk,

You did not take the dd image before the first e2fsck, hm? Now that you 
have a backup: a few days ago a tool called "extundelete"[0] has been 
annunced on ext3-users, maybe that can be of help recovering your fs.

> For the record, i am running kernel 2.6.30 RC3 with gentoo's 
> e2fsprogs-1.41.3.. and i have not rebooted the system since the incident 

e2fsprogs-1.41.5 has been released recently, you might want to give it a 
shot.

Christian.

[0] http://extundelete.sf.net/
-- 
Perfect Forward Secrecy is when Bruce Schneier whispers something in your ear.
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