cdrom mounting problems ?

[' =JeffH ']

I haven't used my modular-bay cdrom for a while, but want to burn an Ubuntu 
.iso file today, so shutdown, installed cdrom, rebooted, and my system just 
plain can't see it.

  "mount: special device /dev/scd0 does not exist"

And indeed, "/dev/scd0" does not exist. It used to. :(


So some googling about indicates that I'm not the only person with this issue..

  how to mount cdrom. not working since install
  https://answers.launchpad.net/ubuntu/+question/14278

  Problems mounting optical drive CD DVD http://ubuntuforums.org/showthread.php
?t=643097&highlight=mount+cdrom+%2Fdev%2Fscd0+does

  Special device /dev/scd0 does not exist http://ubuntuforums.org/showthread.ph
p?t=282913&highlight=mount+cdrom+scd0+does+not+exist&page=2


Some folks recommend migrating from grub to lilo and that that sometimes fixes 
the problem.

Others suggest adding the "noapic" kernel option to the /boot/grub/menu.lst 
entry that one's system defaults to using when booting.

I tried the latter, as well as booting with a CD in the drive, both to no 
avail.

I don't know if my version of this particular problem began with the recent 
upgrade to the 2.6.17-12 kernel (I'm using Edgy 6.10) or whether it's been 
there for a while. I did definitely make use of the CDrw-DVD at some point in 
the past and it worked.

Anyone have any thoughts on how to resolve this?

thanks,


=JeffH