How to verify install CD's?

Lin Tse Hsu evfreek at
Thu Jun 10 06:48:20 UTC 2004

Hi.  I am trying to verify my install CD's without
booting them.  Would:

md5sum /dev/cdrom


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.


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