Ext3 users - Apr 2006 - Debugging file system using debugfs

Hello friends,
        I am trying to learn recovering of file using debugfs. But even
though i delete the file and run lsdel in debugfs
it always gives me 0 deleted nodes found. Where am i making mistake?.

[root at windce7 linux-2.4.32]# fdisk -l

Disk /dev/hda: 40.0 GB, 40016019456 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1        13    104391   83  Linux
/dev/hda2            14      4735  37929465   83  Linux
/dev/hda3          4736      4865   1044225   82  Linux swap
[root at windce7 linux-2.4.32]# debugfs /dev/hda2
debugfs 1.32 (09-Nov-2002)
debugfs:  lsdel
 Inode  Owner  Mode    Size    Blocks   Time deleted
0 deleted inodes found.
debugfs:


Please help me......I am new to this

--
Thanks & Regards,
********************************************
Manish Katiyar
Ozone 2, SP Infocity (Software Park),
New Survey #208 Manjari Stud Farms Ltd.,
Phursungi Village, Haveli Taluka, Saswad Road,
Hadapsar, Pune - 412308, India
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On Apr 25, 2006  15:15 +0530, Manish Katiyar wrote:
>         I am trying to learn recovering of file using debugfs. But even
> though i delete the file and run lsdel in debugfs
> it always gives me 0 deleted nodes found. Where am i making mistake?.
The ext3 implementation makes is basically impossible to recover deleted
files, unless you search the whole disk looking for the data that you
want to recover.  This is an implementation detail for truncate, and may
concievably be fixed (I've discussed an improvement to do this several
times), but nobody has ever worked on it.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.