Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Recovering a formatted ext3 partition
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Other Things Gentoo
View previous topic :: View next topic  
Author Message
sinistre
n00b
n00b


Joined: 18 Jun 2002
Posts: 29
Location: Norway

PostPosted: Tue Jun 25, 2002 11:37 am    Post subject: Recovering a formatted ext3 partition Reply with quote

I accidentally initated a quick format of an ext3 partition. I'd really like to recover the data on it. Can this be done without special equipment. Anybody got any suggestions? This really blows, wasn't critical data but it would be nice to have it recovered anyway.
_________________
Ole Johansen
GPG keyID 7353806D 1999-10-11
Back to top
View user's profile Send private message
klieber
Administrator
Administrator


Joined: 17 Apr 2002
Posts: 3657
Location: San Francisco, CA

PostPosted: Tue Jun 25, 2002 11:49 am    Post subject: Reply with quote

I believe the quick format rewrites your inode tables and journal, so I think you're pretty much hosed. Yes, the data is still on there, but without the inode table to go with it, getting it off is pretty tough. As you alluded to, you can retrieve the data with special tools and techniques, but there's no "easy" way that I'm aware of.

You could always restore from backups. (you do keep backups, right? :))

--kurt
_________________
The problem with political jokes is that they get elected
Back to top
View user's profile Send private message
sinistre
n00b
n00b


Joined: 18 Jun 2002
Posts: 29
Location: Norway

PostPosted: Tue Jun 25, 2002 12:02 pm    Post subject: Well Reply with quote

I hadn't backed up this yet... don't think the quick format completed, though probably close. If I remeber correctly there should be some inode tables at the end of the partition also... they might still be ok... any way to check?
_________________
Ole Johansen
GPG keyID 7353806D 1999-10-11
Back to top
View user's profile Send private message
hbp4c
n00b
n00b


Joined: 17 Apr 2002
Posts: 46
Location: Charlottesville, Va

PostPosted: Tue Jun 25, 2002 5:17 pm    Post subject: Reply with quote

Before you write new data to the disk, I believe I ran across a program a few weeks back that lets you edit the disk directly much like the old norton utilities for dos did in version 8.

Let me see if I can dig up a link on that tonight when i get home and am at my machine. Ill post back whatever i find.

But whatever you do, do not write new information to the disk!!!

h
Back to top
View user's profile Send private message
sinistre
n00b
n00b


Joined: 18 Jun 2002
Posts: 29
Location: Norway

PostPosted: Wed Jun 26, 2002 7:41 am    Post subject: ... Reply with quote

Quote:
But whatever you do, do not write new information to the disk!!!

I won't. I've backed the whole disk (10GB) up in a file with dd. Most of the files that I wish to recover are mediafiles gif, jpg, mpg etc. A lot of them were copied on in one big batch so it should be possible to recover atleast some of it. Doing this manually is obviously too much work... :cry:
_________________
Ole Johansen
GPG keyID 7353806D 1999-10-11
Back to top
View user's profile Send private message
hbp4c
n00b
n00b


Joined: 17 Apr 2002
Posts: 46
Location: Charlottesville, Va

PostPosted: Wed Jun 26, 2002 4:15 pm    Post subject: Reply with quote

Here is what I came up with - 2 documents and a program

LDP's ext2 undeletion howto:
http://www.tldp.org/HOWTO/mini/Ext2fs-Undeletion.html

LDP's ext2 Directory recovery howto:
http://www.tldp.org/HOWTO/mini/Ext2fs-Undeletion-Dir-Struct/index.htm

And finally - maybe useful, maybe not, the linux disk editor program:
http://www.icewalk.com/softlib/app/app_00969.html

Personally, I would think that the disk editor program would be the most useful, because I have some experience using norton's disk editor program for dos. I do not know however, if any of these solutions will help with a partition that has been dumped to a file with dd, presumably it would be ok. I have not had a chance to use disk editor though for linux, so I cannot guarantee results or even suggest how to go about using it unfortunately. {RTFM}

Good luck, let me know how it goes.
Howard
Back to top
View user's profile Send private message
sinistre
n00b
n00b


Joined: 18 Jun 2002
Posts: 29
Location: Norway

PostPosted: Wed Jun 26, 2002 5:21 pm    Post subject: Reply with quote

Much appreciated - I'll be working on it tomorrow, now it's bedtime.
_________________
Ole Johansen
GPG keyID 7353806D 1999-10-11
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Other Things Gentoo All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum