On Mon, Feb 07, 2000 at 02:47:56PM +0100, Charlie RULLEAU wrote:
> HELP!
>
>
> The cdwriter works well under M$, and I'm unable to mount it under linux
> (for example with the mandrake CD), the scsi chain falls, and the system
> hangs for a while periodically. any idea ? TIA
>
> Charlie
>
>
> [root@Neo /root]# ll /dev/cdrom ;ll /dev/cdwriter ;ll /dev/scd1
> brw------- 2 root disk 11, 0 mai 5 1998 /dev/cdrom
> lrwxrwxrwx 1 root root 4 jan 11 22:00 /dev/cdwriter -> scd1
> brw-rw---- 1 root cdwriter 11, 1 mai 5 1998 /dev/scd1
>
>
> [root@Neo /root]# mount /mnt/cdwriter/
> /dev/cdwriter: Erreur d'entr�e/sortie
> mount: Aucun medium trouv�
>
Ok. I think the problem is here.
In order to _mount_ cd's on my scsi cd-writer, I need to
do a
modprobe sr_mod
before /dev/scd0 and /dev/scd1 exsist
> <<the cdwriter door remains blocked>>
> [root@Neo /root]# mount /dev/cdrom
>
> <<no reaction, as if the bus scsi is down>>
>
> [root@Neo /root]# cdrecord -scanbus
> Cdrecord release 1.8a27 Copyright (C) 1995-1999 J�rg Schilling
> scsibus0:
> 0,0,0 0) *
> 0,1,0 1) *
> 0,2,0 2) '0
> label' '.anchor w
> }
> tixD' 'irLi' not present unknown device type 0xe
> 0,3,0 3) 'PART2
> gl' 'obal XCDR_IMAGE_' 'MNTP' reserved unknown device type 0x12
> 0,4,0 4) *
> 0,5,0 5) *
> 0,6,0 6) *
> 0,7,0 7) *
>
> <<I thought it could help>>
>
In order to use cdrecord correctly, you need to do
a
rmmod sr_mod
and then a
modprobe sg
which causes the kernel to stop recognizing your cd-writer as mountable
and make it see the writer as a generic scsi device.
You may want to take a look at the CD-writing-HOWTO
http://sunsite.unc.edu/LDP/HOWTO/CD-Writing-HOWTO.html
which talks about the sg and sr_mod some...
hope this helps
greg
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