On Tuesday 23 November 2004 22:23, Michael A. Peters wrote: >On 11/23/2004 04:01:58 PM, John Summerfield wrote: >> On Wednesday 24 November 2004 05:43, Gustavo Seabra wrote: >> > We want to burn the Fedora 3 DVD under FC3. However, the only >> >> program >> >> > cited in the instructions (X-CD-Roast) says it can't find the >> > DVD-writer. I saw the waeb page and they have a patch for 2.4.x >> >> kernels, >> >> > about SCSI emulation, but I don't see anything for 2.6.x. Does >> >> anybody >> >> > has any suggestions? >> >> 2.6 kernels don't use SCSI emulation. > >Nitpick point - they can, and AFAIK are the only way to verify the >md5sum of a burned disc. Counter nit pick: I'm not useing the SCSI emulation and I am running 2.6 kernels, home built, and I can tell k3b to verify the md5sum of the burn, no coasters yet. As root of course. DMA is on in full force for that drive. >Interesting though - at least for me, it doesn't always work. >After burning the disk, sometimes using md5sum /dev/scd0 (or using > dd and piping the output to md5sum) fails with the same I/O error > that one _always_ gets with ide burning. It's really annoying. For > some reason, mounting and unmounting the CD usually allows it to > verify (with ide- scsi) but even then not always. FWIW, k3b ejects, then reloads the disk before it does the md5sum, something to do with re-initializing the drive according to the propaganda about it. >I'm buying an external SCSI burner soon and will see if that is > better. Since I distribute Linux CDR's I really need a reliable (IE > script it and know that an error really is an error) way to test > the burn after the burn. Hopefully going SCSI will do that for me > better, and not waste so much of my time (I rarely get bad burns, > but you just never know) I bought a LITE-ON combined dvd/cdwriter at best buy last spring. I think the combo is the best bet against obsolesence. Not a real speed demon, but so far its outlasted the last 2 cdwriters I've screwed into that hole. It claims 48x cd burns, but for some reason it only makes about 30x wide open on a disk rated for 52x burns. Dvd burns are 2.5x and have all worked well. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.29% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attorneys please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved.
