Re: disk or reiserfs problem?

[Oleg Drokin <green@namesys.com>]

Hello!

On Mon, Jun 02, 2003 at 10:36:00PM +0400, Hans Reiser wrote:
> >>This is after a hard (power switch) reboot (due to I/O errors). The
> >>disk in question has about 125 GB of data on a single 200GB reiserfs
> >>partition. Do people think the disk is toast, or is this possibly some
> >>correctable filesystem problem? The machine is remote, so I can't
> >>hdb1: bad access: block=35, count=5
> >>end_request: I/O error, dev 03:41 (hdb), sector 35
> >Looks like disk have gone bad. If you are lucky enough, some of the data
> >still can be recovered. Try to copy entire disk into a file/to another
> >disk to see how much bad sectors are there.
> You should provide more details in such advice, such as telling him 
> about dd_rescue and why it is better than dd, etc.  You should also 
> explain that if it is only a few blocks that are bad, writing to the bad 
> blocks can make them go away most of the time (the drive will remap them).

Actually in this case it is impossible to write to the blocks.
The system area where you cannot write is damaged so drive cannot even identify itself.

Bye,
    Oleg