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Re: checking integrity of already written CD/DVD



On Sun,29.Mar.09, 20:28:44, Angelin Lalev wrote:
> Greetings,
> 
> I'm about to lend my entire DVD set with Debian 5.0 to a friend. I
> have no doubt in my friend, but this occasion awakened the curious
> person in me and here is the question:
> 
> Is there a way to check that the DVD I give to somebody is the same
> that the DVD I'll get later?
> 
> More complex:
> 
> Is there a way to check a written DVD against the checksum of the iso
> image written on it?
> 
> (For example to check that Debian 5.0 Lenny Official i386 Binary-1 DVD
> I got from someone has written on it
> exactly the .iso file from debian.org)

$ md5sum /dev/dvd

This should result in *exactly* the same checksum as the iso (which 
should be the same as the one published by Debian). If they don't match 
the DVD was not written correctly.

Regards,
Andrei
-- 
If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)

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