I have a machine at work that is running FC4. In this computer I have one hard disk with 4 partitions (linux, windows, freedos, and linux swap) on HDA. My DVD-RW drive is on HDB. My secondary channel is empty and must remain empty because of the function of the computer (recover data from customer hard drives. Secondary channel connects outside the computer.)

I have HDB=IDE-SCSI passed to the kernal from the grub menu, but when I try to burn an iso image from mkisofs, I get this message:

scsi: unknown opcode 0x01
hdb: status timeout: status=0x90 { Busy }
ide: failed opcode was: unknown
ide-scsi: Strange, packet command initiated yet DRQ isn't asserted
hdb: status timeout: status=0x90 { Busy }
ide: failed opcode was: unknown
hdb: drive not ready for command
hdb: status timeout: status=0x90 { Busy }
ide: failed opcode was: unknown
hdb: drive not ready for command

It then repeats over and over again, killing my cpu time. I have to restart the machine to get it to go away. My drive works just fine in windows, and worked just fine in linux before I upgraded from RH9 to FC4.

command I am attempting to execute:

cdrecord -dao test.iso dev=2,0,0

output from cdrecord -scanbus

scsibus2:
2,0,0 200) 'NU ' 'DVDRW DDW-081 ' 'BX03' Removable CD-ROM
2,1,0 201) *
2,2,0 202) *
2,3,0 203) *
2,4,0 204) *
2,5,0 205) *
2,6,0 206) *
2,7,0 207) *

Strange, my /dev does not appear to contain a hdb.

Any help with this would be appreciated. This computer is expected to be able to burn cds, and having to switch to windows to do so defeats the purpose.

thank you,
Adam

What kernel are you running? The 2.6 kernel doesn't need the ide-scsi module anymore. Comment that out and try it if you're on the 2.6 kernel.

I am running 2.6, but I originally tried it without, and cdrecord complained that /dev/pg0 couldn't be found and recommeded I enable ide-scsi.

As root did you run cdrecord -scanbus