On Tue, Aug 07, 2001 at 10:26:02PM -0500, Jeremy wrote: > I recently enabled the ide-scsi option in my kernel (and set it up so that > lilo started it for the right devices) for my cd burner. I also have the > generic scsi driver in there. My burner BURNS just fine, but I was wondering > what the new device file name is that refers to the device. I'm mainly just > looking for the pattern it adheres to. I can't seem to mount anything in my > burner or in my regular cdrom drive because the /dev/hdc and /dev/hdd are no > longer valid for those devices. I thought it was something like /dev/scd0, > but I tried several /dev/sd* and scd* files, but none of them worked. > (unless there's one that I'm missing and not trying) CD writing software uses the SCSI generic devices (/dev/sg0, /dev/sg1, etc.) as device names. This requires SCSI generic support compiled into the kernel, or the "sg" module. When you want to use the CD burner as a block device to mount an ISO or play music, you use the SCSI cd devices (/dev/scd0 ? I use devfs these days ... for me it's /dev/scsi/host1/bus0/target0/lun0/cd with /dev/sr0 as a symlink :) This requires SCSI CD-ROM support compiled into the kernel or the "sr" or "sr_mod" module depending on your kernel version. I just looked at a box running 2.2.19 without devfs ... /dev/scd0 and /dev/sr0 have the same major, minor numbers, so if you have any /dev/sr* devices try one of those. /dev/sd* are non-removable media (hard disks). Finally, you need to pass parameters to the kernel describing which IDE devices you want handled with SCSI-emulation instead. I pass "hdc=ide-scsi hdd=ide-scsi" to my kernel at boot. HTH, -- Nathan Norman - Staff Engineer | A good plan today is better Micromuse Ltd. | than a perfect plan tomorrow. mailto:nnorman@micromuse.com | -- Patton
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