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Howto: Recover deleted files on ext3/4
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fincoop
Tux's lil' helper
Tux's lil' helper


Joined: 02 Feb 2004
Posts: 143

PostPosted: Sun Apr 10, 2011 5:00 pm    Post subject: Howto: Recover deleted files on ext3/4 Reply with quote

Having hastily/accidently deleted many files.. i searched long and hard for an undelete solution. I struggled to find any other howto on the net. I have this to share, but was unable to verify it. Im my case it did restore a file that was about the same size, but the file was corrupted. I hope that it brings your files back, should cost you nothing to try it.

Commands needed: extundelete, debugfs. The former I definitely merged but was masked. The latter may have been existing in my Gentoo install.

Procedure:
Code:
$DEV = storage device where deleted file was
# Remember to stop any processes that are attached to this volume before continuing
mount -o remount,ro <$DEV>
debugfs <$DEV>

In Debugfs:
cd <directory where deleted file/dir was>
ls -d
# Note the inode of the deleted item that comes up in the list
quit

Restore:
cd <directory where you want the file recovered to>
extundelete --restore-inode <inode num above> <$DEV>

#If your file recovered, then:
mount -o remount,rw <$DEV>
# Start up processes that use this volume
# Else, you should leave the volume mounted RO and try to find some other recovery methods
# This method is exhaustive, make sure you have plenty of space on the target
extundelete --restore-all <$DEV>



Happy hunting.
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dberkholz
Retired Dev
Retired Dev


Joined: 18 Mar 2003
Posts: 1008
Location: Minneapolis, MN, USA

PostPosted: Tue Apr 12, 2011 9:51 pm    Post subject: Reply with quote

There's a few other options in the tree too, in app-forensics/ — magicrescue and foremost have both come in useful.
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orange_juice
Guru
Guru


Joined: 16 Feb 2006
Posts: 588
Location: Athens - Greece

PostPosted: Tue Apr 19, 2011 11:57 pm    Post subject: Reply with quote

Thanx! It worked charmingly!

Kind regards,
orange_juice
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