> Johnny Billquist wrote:
> > That will only catch physically broken sectors on devices which don't
> > automatically remap broken sectors without notice.
> Then add an MD5 check? Checksum? CRC? :)
> 
> > A big danger is accidental overwriting.
> Overwriting of /rescue? Uhm...
> Yes, that's possible.
> 

So is overwriting of /bin/sh with /bin/rm.

These are all rather pointless mind games, they don't really make anything 
more or less safe.