copying a disk with ignoring errors

Yuri Pankov yuri.pankov at
Tue Jan 5 19:17:00 UTC 2010

On Tue, Jan 05, 2010 at 03:31:46PM +0100, Christoph Kukulies wrote:
> I recall a case when I had a hard disk that had got bad sectors and
> it wasn't accessible through normal mounting anymore.
> Then a tool came into the game that - I believe - Poul Henning had
> recommended or written for this purpose.
> It copies a disk sector by sector to a file (kind of dd), but
> ignores errors, it just skips sectors it couldn't read (after a
> couple
> of retries). The result was, that one had a - albeit - worm-eaten -
> image of the disk allowing to access the filesystem
> and getting to the important files with a little luck these not
> being amongst the corrupted data.
> Anyone knowing what this little tool was named? Something like
> diskcopy, devcopy, I forgot.
> --
> Christoph

dd conv=noerror?


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