[PLUG] Verifying a cd-r image
Rich Shepard
rshepard at appl-ecosys.com
Thu Oct 24 23:17:10 UTC 2002
On Thu, 24 Oct 2002, Bear Giles wrote:
> Hmm, maybe I misunderstood the question.
>
> If you want to verify that you wrote the data to the CD-R correctly,
> check the MD5 on the ISO image.
>
> If you want to verify that the ISO image was properly generated, run
>
> # find . -type f -size +0 -print0 | xargs -0 md5sum > MD5SUMS
>
> (or something like that) on your original data, then when you mount
> the ISO image (ideally via the loopback device on the hard disk image
> since it's *much* faster than reading the CD, esp. if the disk layout
> isn't optimized to minimize seeks) run
>
> # md5sums -c /cdrom/MD5SUMS
Thanks, Bear.
Rich
More information about the PLUG
mailing list