Addding a Missing /dev/dvd under DevFS

Hello.
I've just installed Arch Linux on a laptop with a removable CD-RW/DVD drive. This is recognized as /dev/hdb in dmesg. This system uses DevFS, not udev. I load ide-scsi in the MODULES line of rc.conf and have added a 'hdb=ide-scsi' line to grub's menu.lst.
What is mysterious to me is that while I have /dev/floppy/0 and /dev/cdrom, I can't seem to find /dev/dvd -- and when I set up a link to /dev/sr0, this link disappears on reboot.
Can anyone help me understand what I'm doing wrong here.
Thanks.
Win

Hi Everyone.
I've been able to figure out what to do to get /dev/dvd and /dev/dvdr:
(a) include 'ide-scsi' in MODULES in /etc/rc.conf
(b) make changes to /etc/devfsd.conf
# Use this to create /dev/dvd, /dev/dvdr
REGISTER ^sr0$ CFUNCTION GLOBAL mksymlink $devname dvd
REGISTER ^sr0$ CFUNCTION GLOBAL mksymlink $devname dvdr
UNREGISTER ^sr0$ CFUNCTION GLOBAL unlink dvd
UNREGISTER ^sr0$ CFUNCTION GLOBAL unlink dvdr
Regards,
Win

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Ahah, I think I have defekt-bullshit hardware :
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Here is a good reason (EXCUSE !!!) to upgrade my motherboard. :-)
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