How to verify install CD's?

Marc Bruggeman marc.bruggeman at
Thu Jun 10 07:50:37 UTC 2004

when you have the iso image, you can do > md5sum <isoimage> to check for
a correct download. 

When you have burned the CD, insert it and start the install. You can do
the mediacheck for all CD's before actually starting the install. You
can always quit after the mediacheck.
Hope this helps,

On Thu, 2004-06-10 at 08:48, Lin Tse Hsu wrote:
> Hi.  I am trying to verify my install CD's without
> booting them.  Would:
> md5sum /dev/cdrom
> work?
> On RedHat 7.3, it seems to fail with the ubiquitous
> I/O Error message.  I cannot seem to shut the CDROM
> door without the CD amtomatically mounting.  If I
> umount, the CD ejects.
> Of course, I realize that the suggested method is
> booting, then typing linux mddiacheck, but I wanted to
> do it withough bringing down the RedHat machine.
> Thanks,
> Lin
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