lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 10 Feb 2012 14:41:14 +0100
From:	Bernd Schubert <bernd.schubert@...tmail.fm>
To:	Rudolf Zran <rudolfzran@...oo.com>
CC:	Andreas Dilger <adilger@...ger.ca>,
	"linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>,
	"debian-user@...ts.debian.org" <debian-user@...ts.debian.org>
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 https://pzt.me/8q6k ).
>

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...


Cheers,
Bernd

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists