i have a problem with setting up my cd writer (TEAC W516EB). i am using kernel 2.4.19, and i have support for ide scsi emulation in the kernel. kernel boot parameters include "hdc=scsi" and kernel detects my writer just fine.

contents of /proc/scsi/scsi:
if i try to use "cdrecord -scanbus", i get the folowing error message:
so what is wrong

You may have missed 1 or 2 things when configuring your kernel. You need SCSI cdrom support, SCSI Generic support, and possible the vendor specific thingie. I also enable "debugging" or whatever that line is (it says it adds like 12k to my kernel, whoopdy do!). I actually got that line a few weeks ago when I too upgraded to .19 and that's what I missed. The things I mentioned above.

Good luck.

MasterC: i have enabled EVERYTHING you said, but i still get the same error message when using cdrecord.

What does dmesg say about your burner?

Oh, and do you use Lilo to boot, or Grub, and what distro?

If lilo, does your line really just say:
hdc=scsi?

And are you sure it's on the Secondary Master ide channel?

Cool

Just a thought - if you're using an IDE which is emulating a SCSI shouldn't the device be scd[n] ?

I think you can specify the device with a -d switch in cdrecord -scanbus.

Bert

1. i use grub (lilo doesn't work on my raid install)
2. i use debian 3.0
3. dmesg:
hdc: CD-W516EB, ATAPI CD/DVD-ROM drive
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: TEAC Model: CD-W516EB Rev: 1.0B
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray

oh, and i am sure that it is hdc.

If you use ide-scsi emulation it is no longer hdc - system with scsi emulation configured properly doesn't recognize your /dev/hdc as a valid block device anymore. In the output of /sbin/lsmod do you see ide-scsi, sr_mod, scsi_mod???

neo77777: as i said before, i didn't compiled ide-scsi emulation as modules, but i compiled them in the kernel.

about hdc, sorry my mistake.... it is /dev/scd0

well, because /dev/sg0 links to /dev/scd0 this doesn't make a difference, but i tryed it anyway and it doesn't work

You need to make a link to get it to work.There is a thread I can't find anymore somwhere here with all about it.It is something like ln -s /dev/scd0 /dev/hdc
Now this is probably wrong - I am not a great linker.But it's something around that.
That 'should' make it work if your kernel and bootparameters are ok.At least with cdrecord.Cdparanoia is another story.I am working on that.

Would this be the thread you were looking for:
http://www.linuxquestions.org/questi...threadid=28580
?

If you haven't read that thread through yet Kostko, you might want to, just to make sure you have done the things to get cdburning enabled.

Oh and crashmeister, once the CDROM becomes a SCSI emulating device, /dev/hdc is no longer valid, and is not necessary.

Cool

MasterC: yes i have done every thing that is asked there.

my conf files:
/boot/grub/menu.lst:
title Linux - 2.4.19
root (hd1,0)
kernel /boot/linux-2.4.19 root=/dev/hdg1 ro hdc=ide-scsi

dmesg:
hdb: SAMSUNG CD-ROM SC-148F, ATAPI CD/DVD-ROM drive
hdc: CD-W516EB, ATAPI CD/DVD-ROM drive
hde: IC35L040AVER07-0, ATA DISK drive
hdg: WDC WD800JB-00CRA1, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ide2 at 0xdc00-0xdc07,0xe002 on irq 5
ide3 at 0xe400-0xe407,0xe802 on irq 5
hde: 80418240 sectors (41174 MB) w/1916KiB Cache, CHS=79780/16/63, UDMA(44)
hdg: 156301488 sectors (80026 MB) w/8192KiB Cache, CHS=155061/16/63, UDMA(100)
hdb: ATAPI 48X CD-ROM drive, 128kB Cache, DMA
Uniform CD-ROM driver Revision: 3.12
ide-cd: passing drive hdc to ide-scsi emulation.
...
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: TEAC Model: CD-W516EB Rev: 1.0B
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
...

/proc/scsi/scsi:
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: TEAC Model: CD-W516EB Rev: 1.0B
Type: CD-ROM ANSI SCSI revision: 02

do you need any more conf files? just ask

Naah,it,s there http://www.linuxquestions.org/questi...ighlight=chaos
That links there got me going with debian.Thanks a lot by the way.