how to enable CDRW drive?

[chanys]

Hi,

After I installed redhat 8.0 on my dell workstation and started using gnome, I can read from the cdrw drive, but when I tried to use gtoaster to scan bus for detect for any cdrw drive, nothing happens. I take this to mean it can't detect any cdrw drive.

My cdrom drive is mounted on /dev/scd0

Is there any additional stuff to do to enable the cdrw drive?

Thanks!
Yee Seng.

[bpark]

Try using cdrecord.

[yowwww]

yes, you may need to enable scsi emulation for that drive

also to double check run this in the terminal and post the results here:

cdrecord -scanbus

are you using a bootloader or a floppy boot?
have you tried k3b? I find it is far superior, you can get an rpm for it here:

http://k3b.sourceforge.net/index.php?page=download.html

*I know you will be tempted to get a later version, but try 0.75 - I know that to work with red hat 8 and know that the more recent versions have caused problems with red hat 8 in particular.

[chanys]

Hey,.. thanks for the informative reply. The results of cdrecord -scanbus is as follows :

[root@sparkle chanys]# cdrecord -scanbus
Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jörg Schilling
Linux sg driver version: 3.1.24
Using libscg version 'schily-0.5'
scsibus0:
0,0,0 0) 'FUJITSU ' 'MAP3147NP ' '5605' Disk
0,1,0 1) *
0,2,0 2) *
0,3,0 3) *
0,4,0 4) *
0,5,0 5) *
0,6,0 6) *
0,7,0 7) *
scsibus1:
1,0,0 100) *
1,1,0 101) *
1,2,0 102) *
1,3,0 103) *
1,4,0 104) *
1,5,0 105) *
1,6,0 106) 'ARCHIVE ' 'Python 06408-XXX' '9050' Removable Tape
1,7,0 107) *
scsibus3:
3,0,0 300) 'HL-DT-ST' 'CD-RW GCE-8481B ' 'C102' Removable CD-ROM
3,1,0 301) *
3,2,0 302) *
3,3,0 303) *
3,4,0 304) *
3,5,0 305) *
3,6,0 306) *
3,7,0 307) *

Does this mean that I don't need to enable scsi emulation? If so, then something must be wrong with gtoaster...?
Will try that K3B you mentioned.

Thanks,
Yee Seng.

[yowwww]

well, it shows your cd-rw fine, but you have a unique setup for one.

here is my output for cdrecord -scanbus:

 cdrecord -scanbus
Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jrg Schilling
Linux sg driver version: 3.1.24
Using libscg version 'schily-0.7'
cdrecord: Warning: using inofficial libscg transport code version (schily - Red Hat-scsi-linux-sg.c-1.75-RH '@(#)scsi-linux-sg.c 1.75 02/10/21 Copyright 1997 J. Schilling').
scsibus0:
        0,0,0     0) 'LITE-ON ' 'LTR-52246S      ' '6S0D' Removable CD-ROM
        0,1,0     1) *
        0,2,0     2) *
        0,3,0     3) *
        0,4,0     4) *
        0,5,0     5) *
        0,6,0     6) *
        0,7,0     7) *

so your might be different, I think by default the cd recording software might be scd0, you might have to tell it to use scd3 instead due to your setup. Either way, k3b is still way better to use to burn data.
Check your burning software to see if it recognizes your burner and see if you can change the bus to the appropriate scsi if it is set incorrectly.

[Dolda2000]

No, not scd3. It will still be scd0. They are numbered in the order that they are registered for the SCSI CD driver.
I've got no idea how gtoaster really works, though. It might actually be that it only scans the first bus. Yes, that would be stupid, but after all, most people only have the emulation bus. You can always burn directly with cdrecord, though. That's the method that I usually use.

[yowwww]

ok, thanks for clearing that up Dolda
I still say to use k3b though if he wants a gui recorder

[chanys]

Hey guys,

Thanks for the various feedbacks. I'm learning something new from you all everytime.

I guess gtoaster only scans scsi bus 0 by default. There's a place where I can specify the scsi id for the cdrom drive. It was set to 0,0 initially. Thought it meant <bus#>,<device#>
But no... I had to set to 1,0,0 to denote <bus-1>,<device-0>,<not-sure-wat-this-is>

Thanks!
Yee Seng.

[Dolda2000]

The last number is the LUN (logical unit number), which is used to differentiate between different subfunctions of drives. Most drives only have one LUN, but those multi-disk SCSI CD-ROMS use a different LUN to refer to each disk, for example.