dev/cdroms/cdrom0 does not exist!

brazilian_joe · Tux's lil' helper Joined: 14 Mar 2003 Posts: 99

I have installed gentoo 1.4 rc4, nd compiled kernel with supermount, scsi emulation support, scsi generic support and (dont know if it is needed) scsi cdrom support. I have not enabled ide cdrom support, have only one HD and one CDRW respectively at hda and hdd (primary master and secondary slave). They worked until I fscked up my gentoo 1.4rc2, upgrading my glib, so I opted for a complete reinstall. But now the cd does not mount.
/dev/scsi and /dev/cdroms have no entries, but I have /dev/ide/host0/bus0/ and /dev/ide/host0/bus1/. bus0 shows me all my partitions, but in the end of bus1 it is empty.
I hd supermount working before and i am no device guru, wht is wrong?
devfs is compiled in also, and I am using gaming-sources kernel.

My hardware works under windows 2000 (dual boot).
Any help is appreciated.

blamothe · Posted: Tue May 13, 2003 12:41 am Post subject:

well /dev/cdroms/cdrom0 is just a link so it not exisiting isn't really a problem, you can always make it manually. can you mount the cdrw drive manually, without supermount? i don't have a cdrw dirve so i am not sure how the scsi emulation in those work, but you could try also enabling ide cdrom support as well, that may fix the bus1 problem. you could also physically change the drives jumper from the secondary slave to the secondary master, since you say its the only one on the controller, and that could help as well.

barlad · l33t Joined: 22 Feb 2003 Posts: 673

scsi emulation support is needed for most dvd/cd burning softwares.
I am not sure wether or not you enabled scsi emulation and asked a redirect at the boot up (a line like hda=ide-scsi) but if you did, your cdrom should be at /dev/srx (sr0 or sr1).

Your cd-rom is on the second bus (bus1), I assume? If that's the case and there is nothing bus1, it's either that scsi emulation is working -and you should find your device at srx- or that there is a hardware problem.

blueworm · l33t Joined: 09 May 2003 Posts: 962

you need to have the following modules installed.

ide-scsi (SCSI emulation support)
sg (SCSI generic support)
sr_mod (SCSI CD-ROM support)

add them if neccesary.

also add them to /etc/modules.autoload.

you will also need the following line in your boot loader.
grub in kernel line add: hdx=ide-scsi
lilo add: append hdx=ide-scsi

now try cdrecord -scanbus

brazilian_joe · Tux's lil' helper Joined: 14 Mar 2003 Posts: 99

All right, it worked! thanks!