EXT3 file recovery

Theodore Tso tytso at mit.edu
Wed Apr 29 13:29:53 UTC 2009

On Wed, Apr 29, 2009 at 05:39:07AM -0600, Andreas Dilger wrote:
> On Apr 28, 2009  22:08 -0500, Bruno Wolff III wrote:
> > On Wed, Apr 29, 2009 at 06:15:59 +0530,
> >   ranjith kannikara <ranjithkannikara at gmail.com> wrote:
> > > HiI am a pre-final year computer science engineering student. We are doing
> > > an open source project to make an application to recover the deleted files
> > > in an ext3 filesystem. In between we are having some doubts can any one make
> > > some clarification?
> > 
> > A good start would probably be to look at what ext3grep does.
> A good finish would be to take ext3grep and enhance it to do more than it
> currently does (e.g. add ext4 support) instead of making a duplicate tool.

Note that converting it to use libext2fs would for more of its
low-level functions would be one of the easier ways of accomplishing
this, since all of the low-level extent manipulation functions are
coded in libext2fs.  On the other hand, you'll learn more about the
low-level filesystem layout if you do it yourself; sone one is
probably better from an engineering perspective in terms of making a
robust and useful and long-term more easily maintained tool --- and
the other approach is better from a pedagogical perspective. 

    	  	      	     	    - Ted

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