Re: Odd problem with sha1sums

"Nils Breunese (Lemonbit Internet)" <[email protected]>
Newsgroups gmane.linux.redhat.fedora.legacy
Message-ID <[email protected]>
Gene Heskett wrote:

> I have now burnt 2 copies of the FC-6T2-live-dvd.iso, one on a +dvd  
> and one
> on a -dvd disk.
>
> Both of these freshly written dvd's check with an identical sha1sum  
> when
> doing a 'sha1sum -b /dev/cdrom'.
>
> But it doesn't match the sha1sum of the iso I started with!
>
> Is this a known problem?  Fixable by turning off the dma on /dev/ 
> hdc maybe?
>
> System is an FC2 box, with a newer kde-3.3.0, so k3b is still using  
> md5sums
> which of course fail to check too.

Actually I'm not really sure running sha1sum on the device should  
give the same sum as running it on the iso file. I believe the  
standard procedure is to run sha1sum on the iso after you've  
downloaded it and then check the outcome. Did you do that? Burning  
software should take of making sure it's properly burning the iso  
after that. Also, did you run the built-in media check when you start  
the installer and did that give you OK?

Nils Breunese.


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