Mailinglist Archive: opensuse (3964 mails)

[Marcos Vinicius Lazarini <lazarini@xxxxxxxxxxxxxxx>]

On Thu, 11 Nov 2004, Jim Sabatke wrote:

> I lost a disk, mostly.  It has loads of bad blocks and tons of data that 
> I need.   I've tried reiserfsck with both --rebuild-sb and 
> --rebuild-tree.  Nothing seems to work.
> 
> I copied all the directories onto a new install disk, but it copies the 
> bad blocks as bad blocks which means I can't even get into some 
> directories on the copied to disk.  I realize some data may be gone 
> forever, but among the bad blocks there are plenty of good data.
> 
> How can I recover this?


Your first step is to copy the entire disk to a good one, either partition 
by partition (hda1 hda2...) either the hole disk (hda). Avoid use the 
damage disk to maximize chances of a successful rescue.

To actually copy the data, I suggest you to use dd_rescue - it's a
enhanced version of dd that handle read errors much better than dd. It can
also copy reverse direction (from the end to the beggining) in case you
have a big defect right in the middle.

After that, take the usual steps (reiserfsck, etc) and see if it get back
to live: with a good media, the fschk program can actually write info to
correct structural problems.

Wish you luck! I *really* know how you are felling... :-/

--
Marcos Lazarini