On Sat, 2005-08-27 at 15:25 -0600, Philip Prindeville wrote: > >---- > >sounds like a bad cd or a bad drive - possibly just incompatible > > > >you can compute the md5sum of the disk in other ways - like from Windows > >or Linux. How/where did you get the disk? > > > > > > I downloaded the .iso image from a mirror, and then burned it using > the default Gnome application for .iso files (cdroast?)... > > > >if you burned the cd in Windows you can use this URL to help figure if > >the CD is good... > ><http://www.linuxquestions.org/questions/answers.php? > >action=viewarticle&artid=436> > > > >linux, you can just type -c md5sum /dev/hdc #substitute for a different > >device > > > > > > I'm unclear on this... One of them crapped out because it couldn't > read parts of the disk, so it seemed like it was a bad burn... And then > I burned an FC4-i386.iso image onto a disk (which used a SHA1SUM, > and not an MD5 digest) and tried to generate a sum for that as: > > [root@media dvbtune-0.5]# sha1sum -b < /dev/hdc > 0c5a18caa900eb770ff29b1da16b075e1fd8f4a4 *- > [root@media dvbtune-0.5]# > > but that was different from: > > Hash: SHA1 > > 2f151a7329846da685c2a72fcb40eba3e8a355a0 FC4-i386-DVD.iso > aa82f4be0be901777537b6ad0906c4f3c2d84bc3 FC4-i386-SRPMS-disc1.iso > e43a0db88bf537f6dab6e49513c6391a4aa9b549 FC4-i386-SRPMS-disc2.iso > 37c0a3dacf0e803e402474ecca6a16bf177490b4 FC4-i386-SRPMS-disc3.iso > 72fd68d72a2c7563b74073c25dccb903a2a34a01 FC4-i386-SRPMS-disc4.iso > 3fb2924c8fb8098dbc8260f69824e9c437d28c68 FC4-i386-disc1.iso > 31fdc2d7a1f1709aa02c9ea5854015645bd69504 FC4-i386-disc2.iso > 032455cdf457179916be3a739ca16add75b768b7 FC4-i386-disc3.iso > f560f26a32820143e8286afb188f7c36d905a735 FC4-i386-disc4.iso > 736e1555e88740d6131c5c84fbe69ed1073ba82d FC4-i386-rescuecd.iso > > > > so I'm wondering if the image on the DVD needs to be checksummed > differently somehow? ---- get an sha1sum on the iso image to make sure that before you burn the cd/dvd, it matches up. Yes, starting with FC-4, they use sha1sum and not md5sum. I recall discussion about having to 'pad' a dvd.iso in the past but if I recall correctly, that was with FC-3 - don't know about FC-4 or burning it onto DVD, I have only downloaded cd images and burned those. Perhaps someone else with knowledge on burning the dvd.iso can pipe in on any extra steps necessary before burning to dvd. obviously, once a cd/dvd is burned, you can get the md5sum/sha1sum on the disk as well. ---- > > > > >If you burn on one device and try to install on another, sometimes > >burning at a slower speed helps and of course, there's always a > >possibility that the drive/box/fedora are not working together and the > >following might be appropriate... > > > > > > I'll try reburning the FC3-i386.iso DVD at 1x instead... > > > >did you try this (from fedorafaq)? > > > >Q: The installer's media check says all my CDs are bad! > >A: There is a bug in the kernel which causes the media check to say all > >CDs are bad, on some systems. To do a successful media check, do the > >following: > > 1. At the installer prompt, type: > > > > linux mediacheck nocddma > > > > > > It never gets that far! It craps out before then. I run the command, > but it seems like certain options are being ignored like "mediacheck" > and "nofloppy". ---- I thought that their language was a bit sloppy there. I think it is the initial boot prompt where you must state 'linux mediacheck nocddma' and in my limited thinking, if I can't mediacheck the installer disk(s), I have to change the methodology of creating the disks or the drive reading the disks. Craig
