[NTLUG:Discuss] Using 2 CD-ROM's with X-CD-Roast

[Jay F. Cox]

"J. Reeves Hall" wrote:
> 
> I have two IDE CD-ROM drives, one 40x reader (Pine) on /dev/hdd and one
> 4x writer (Philips) on /dev/hdc. I'm having a beast of a time getting
> X-CD-Roast to handle this pair. The writer obviously needs the ide-scsi
> driver (to emulate a SCSI interface), and that worked fine (for reading
> and burning) until I added the reader to the system yesterday.
> 
> Both drives work fine as readers in either ide-cd (normal ATAPI) or
> ide-scsi (scsi emulation) mode. They can be mounted as /dev/hdc or
> /dev/hdd, or as /dev/sr0 or /dev/sr1, depending on which modules I'm
> running. The problem comes when I try to burn.
> 
> X-CD-Roast detects both drives properly, as SCSI. Good. It detects the
> reader as ATAPI and SCSI. Strange, but good, I think. I selected the
> burner for both reading and writing, since the burner used to be my only
> CD-ROM drive. That should leave the other device alone, right?
> 
> When I click on "Copy Data CD", it freezes. I can still switch consoles,
> but the kernel goes into a loop of resetting the SCSI bus, which
> basically leaves the console unusable. I get an oops if I try to reboot
> (unable to handle NULL pointer). If I'm not lucky, the system will
> simply hardlock when I press the "Copy Data CD" button.
> 
> The drives are known to be good. They work in Windows (well, it freezes
> randomly during direct disc-to-disc copies, but that's typical).
> 
> BTW I added the reader because the writer is very bad at reading damaged
> CD's, and also quite slow... The reader is slave to the writer on IDE1,
> if that matters.
> 
> Heeeelllllp!
> -Reeves

ah, probably should have read this first.

in lilo, I set up only the writer (which is hdd) to use the ide-scsi
emulator. Setting it up this way might help.

image=/boot/vmlinuz.2.2.X
  label=linux
  root=/dev/hda2
  append="hdd=ide-scsi" 

Jay Cox
--
You enjoy the company of other people.