Again on: How to check *CDROM* correctness?

["M. Fioretti" <m.fioretti@xxxxxxxxx>]

Hello again.

Thanks for all your input. Summing everything up, the conclusion seems
to be that, when you have no original ISO, but only the *CDROM* made
out of them God knows how, there are only two options:

	1) Boot with those CDs, run linux mediacheck on all of them,
           and compare the results with those published on the
	   original site

	2) (in some cases only) mount the CD in linux and run md5sum
	   on the corresponding device:

		mount -t iso9660 /dev/cdrom /mnt/cdrom
		md5sum /dev/cdrom

For the record, I have tried 2) on the CDROM I used to create
*this* RH 8.0 I'm writing from, and the result is:

	[root@xxxxxxx root]# md5sum /dev/cdrom
	md5sum: /dev/cdrom: Input/output error

	[root@xxxxxxx root]# cat /dev/cdrom | md5sum
	cat: /dev/cdrom: Input/output error
	but a checksum was indeed output
  
At this point, I'll probably do both as soon as I get those shrike CDs from my
friend, but any general comment is still welcome, of course.

	Ciao,
		Marco Fioretti

-- 
Marco Fioretti                 m.fioretti, at the server inwind.it
Red Hat for low memory         http://www.rule-project.org/en/

We have to pursue this subject of fun very seriously if we
want to stay competitive in the 21st century. -George Yeo,
     Singapore's Minister of State for Finance.