Re: Undelete for Linux

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On Fri, 6 Dec 2002 04:02:06 -0500 (EST), Mike A. Harris wrote:

> On Thu, 5 Dec 2002, Aaron Konstam wrote:
> 
> > > Is there a way to undelete files on RedHat 7.3/8.0?
>
> > For ext2 file systems this can be done with dumpe2fs, mc and a
> > program that can be downloaded from contributed sites called restore.
> >
> > I have yet to see any thing that admits it can recover files in ext3
> > file systems but I haven't really tried.
> 
> An ext3 filesystem is an ext2 filesystem, with the addition of 
> the journal file, so recovery is identical.
> 
> Another method which is much easier, is to remount the partition 
> read-only that the files were deleted from, after forcefully
> doing a "kill -9" on any software preventing remounting, and then 
> using Midnight Commander (mc) to recover the files using it's 
> built in undelfs support.

While this worked with ext2, "mc" doesn't find any deleted inodes
with ext3. At least not with Valhalla (we're on psyche-list).

Same thing with the (IMO) much faster and more comfortable "recover"
utility: 

  http://recover.sourceforge.net/linux/recover/download.php3

While it was doing a good job with ext2, it didn't find any deleted
files with ext3 the first time I wanted to use it and the second
time it caused a segfault. That is long ago (probably at the time of
Enigma; I don't remember when I converted to ext3, probably when
errata packages made it possible). There's an updated package which
fixes a segfault, but no mention of any changes with regard to ext3.

Hence I assume that Aaron wanted to point out that he has yet to
find an undeletion utility which explicitly advertizes support for
ext3.

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