[CentOS] About md5sum

Tru Huynh tru at centos.org
Tue Nov 20 15:01:44 UTC 2007


On Tue, Nov 20, 2007 at 09:52:43AM -0500, Ray Leventhal wrote:
> Fajar Priyanto wrote:
> > Hi all,
> > A friend of mine gives me a copy of Centos5 DVD.
> > I then make an iso of it using dd if=/dev/cdrom of=centos5.iso command.
> > I then check it using sha1sum.
> > But the result is different than of listed in Centos website.
> > Should it the same? Or we simply cannot compare sha1sum from burned DVD to 
> > that of 'unburned' iso file?
> > Thanks.
> >   
> an afterthought -
> 
> the subject of your mail was md5sum...the body speaks about sha1sum. 
> They're different mechanisms;  comparing a sha hash to an md5 will
> always be different, I believe.

definitely!

this and the relevant links might help:
http://www.g-loaded.eu/2006/10/07/verify-a-burned-cddvd-image-on-linux/#more-291

Cheers,

Tru
-- 
Tru Huynh (CentOS-3 i386/x86_64 Package Maintenance)
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B
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