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Re: sha1sum problems :-(

Marko Vojinovic wrote:
Ok, I downloaded the brand-new Fedora 8 iso file:

[vmarko sith ~]$ sha1sum Fedora-8-i386-DVD.iso
782a0e80de1b8e9f24e10e40055cc1b545390cbd  Fedora-8-i386-DVD.iso

After burning it to two dvd's on two different machines (one Windows, the
other Linux) using different software (Nero and K3B), I get:

[vmarko sith ~]$ sha1sum /dev/dvd
04e39c4be1cf577b98a8b94ff61bdb60252ec6cb  /dev/dvd

"sha1sum /dev/dvd" is not a reliable way to read a disc, though it may work on some hardware. Try using the rawread script at


instead. This uses the isoinfo command to determine how big the ISO file is, then runs a dd command that attempts to read exactly that much off the drive. If this still fails, then please report back. I'm currently seeing a return of the old mediacheck problem (linux readahead bug).

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