JD <jd1008 <at> gmail.com> writes: > I burned Fedora-14-Beta-i386-DVD.iso to blank dvd. > One time I used wodim, and 2nd time I used growisofs. > After each burn, I would dd the dvd back in: > > dd if=/dev/sr0 of=f14.iso bs=2k > > In both cases the size of f14.iso was 10240 bytes larger than > Fedora-14-Beta-i386-DVD.iso. In general this won't work unless dd is told exactly how much to read off. Unfortunately, it works often enough that people think it's supposed to. Use the rawread script from http://www.troubleshooters.com/linux/coasterless.htm#rawread instead. This determines the ISO size from the ISO header and then automatically reads off the right amount. There is a defect in the Live and netinst images (which started in F12 Alpha, and only affected i386 and x86_64, not ppc), in that they are larger than the ISO header indicates: https://bugzilla.redhat.com/show_bug.cgi?id=585006 To read these off properly, the rawread script won't work, since it assumes that the ISO header size is correct. Instead, you have to manually compose a dd command that reads off the size corresponding to the actual ISO file (not the size in the ISO header). -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
