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sha1sum problems :-(



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

where the checksum is *the same* (while being wrong) for both dvds. Nero
and K3B reported no errors. None of the discs boots any machine I tried,
but they do mount correctly:

[root sith ~]# mount /dev/dvd /media/
mount: block device /dev/dvd is write-protected, mounting read-only
[root sith ~]# ll /media/
total 860
-rw-r--r-- 1 root root   2882 2007-11-02 15:56 fedora.css
-rw-r--r-- 1 root root  18363 2007-11-02 15:56 GPL
drwxrwxr-x 4 root root   2048 2007-11-02 15:56 images
drwxrwxr-x 2 root root   2048 2007-11-02 15:54 isolinux
-rw-rw-r-- 1 root root     94 2007-11-02 15:59 media.repo
drwxrwxr-x 2 root root 352256 2007-11-02 15:21 Packages
-rw-r--r-- 1 root root   9680 2007-11-02 15:56 README-BURNING-ISOS-en_US.txt
-rw-r--r-- 1 root root 172530 2007-11-02 15:56 RELEASE-NOTES-en_US.html
drwxrwxr-x 2 root root   2048 2007-11-02 15:59 repodata
drwxr-xr-x 3 root root 299008 2007-11-02 15:25 repoview
-rw-r--r-- 1 root root   1910 2007-11-02 15:56 RPM-GPG-KEY
-rw-r--r-- 1 root root   1706 2007-11-02 15:56 RPM-GPG-KEY-beta
-rw-r--r-- 1 root root   1519 2007-11-02 15:56 RPM-GPG-KEY-fedora
-rw-r--r-- 1 root root   1105 2007-11-02 15:56 RPM-GPG-KEY-fedora-rawhide
-rw-r--r-- 1 root root   1076 2007-11-02 15:56 RPM-GPG-KEY-fedora-test
-rw-r--r-- 1 root root   1232 2007-11-02 15:56 RPM-GPG-KEY-rawhide
drwxr-xr-x 2 root root   4096 2007-11-02 15:56 stylesheet-images
-r--r--r-- 1 root root   4290 2007-11-02 15:59 TRANS.TBL

Is it gremlins, or am I missing something in K3B/Nero/elsewhere? I
suspected hardware fault with first, but on two different machines I find
that unlikely...

:-(
Marko

Marko Vojinovic
Institute of Physics
University of Belgrade
======================
e-mail: vmarko phy bg ac yu




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