md5sum of cd-image

Dennis Bjorklund db at zigo.dhs.org
Sat Nov 13 14:42:06 UTC 2004


On Sat, 13 Nov 2004, Paul Howarth wrote:

> >   dd if=/dev/cdrom bs=2k | md5sum
> > 
> > to check the md5sum after you have burned the cd. I've tried to burn the
> > cd's in different ways using cdrecord (different pad-size) but no matter
> > what, I get a I/O-error in the end and a sum that is correct.
> 
> That's OK; you get the I/O error when dd attempts to read past the end
> of the data on the CD. The md5sum is good, so the CD is too.

Except that the md5sum is not good.

The iso I downloaded have the correct checksum, but the above command does
not give the correct checksum on my burned cds.

-- 
/Dennis Björklund




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