25 Apr
2005
25 Apr
'05
6:44 a.m.
>>>> "Vintage" == Vintage
Computer Festival <vcf at siconic.com> writes:
Vintage> Is there anything in Linux that will dump a disk image and
Vintage> put blank space where bad sectors are? It's not certain if
Vintage> dd does this.
Neither Linux the manpage nor the info for dd is clear on this. But
the NetBSD manpage says that if you say "conv=error" then dd will omit
any bad blocks from the output, while if you say "conv=error,sync" it
will substitute zeroes for bad blocks.
You may have to use blocksize=512 for this to work best, otherwise dd
may null out whole buffers full if any one block in the I/O is bad. I
haven't checked that, though.
paul