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Date:	Fri, 10 Feb 2012 14:41:14 +0100
From:	Bernd Schubert <>
To:	Rudolf Zran <>
CC:	Andreas Dilger <>,
	"" <>,
	"" <>
Subject: Re: Restoring filenames from partly damaged ext4-filesystem

On 02/09/2012 10:22 PM, Rudolf Zran wrote:
> Hello Andreas!
> [ext4 partition overwritten with garbage at the beginning]
>>>   * photorec from the testdisk package recoveres, luckily!, about 500GB of
>>>     data. Though the content seems to be pretty reasonable, no filenames
>>>     are recovered, since photorec operates without using filesystem
>>>    knowledge.
>>>   Do you see any chances (besides consulting professional recovery companies)
>>>   getting the filenames back?
>> There was an ext3grep tool that some people had success with, but when I
>> looked at it, it was still fairly complex to use.
> Thanks for the hint, but the problem with ext3grep is that it seems to
> rely on an intact filesystem structure. It even has no option to set
> another superblock besides the default one and fails with all commands
> I tried ( see ).

I have written some tools in the past to recover the file structure of 
an over-formated ext3/ext4 device based on directory blocks.
With some tweaks it should be able to assign the file#inode_numbers in 
lost+found to a directory structure.
Problem is that I'm rather busy with too many other projects already. Do 
you know C and could you add some code on your own for the lost+found 
assignment? I can assist you, but it is unlikely that I find much time 
do it myself...


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