jaunty: unable to mount CDs

[D. R. Evans]

D. R. Evans said the following at 05/02/2009 09:05 PM :
> Following the upgrade to jaunty, I can no longer mount CDs in /media/cdrom0.
> 
> In the past, CDs would automount there as soon as I put them in (the Device
> Notifier plasmoid would tell me that a CD was available, and let me view
> the contents if I wanted). Now, not only do they not automount, I can't
> mount them manually either.
> 
> If I try to mount a CD manually, I get the message:
>   mount: no medium found on /dev/sr0
> 
> I've never seen any device called "sr0" before; I don't know where that's
> come from. The fstab entry for the drive is:
> 
> /dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0
> 

Weirder and weirder...

If I put a CD in my second drive, it *does* automount, but instead of being
/media/cdrom1 as it was in the past, it mounts on /cdrom0.

So, to summarize:

In the past (intrepid):
  drive A automounted and was usable as /media/cdrom0
  drive B automounted and was usable as /media/cdrom1

Now (jaunty):
  drive A does not automount, and is not manually mountable
  drive B automounts as /media/cdrom0

The two entries in /etc/fstab (which are unchanged from the past) are:

/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0
/dev/scd1       /media/cdrom1   udf,iso9660 user,noauto,exec,utf8 0       0

If I look at the CDs in /dev I see:

# ls -al /dev/scd*
lrwxrwxrwx 1 root root 3 2009-05-02 14:26 /dev/scd0 -> sr0
#

and:
# ls -al /dev/sr*
brw-rw----+ 1 root cdrom 11, 0 2009-05-02 14:26 /dev/sr0
#

It seems like some sort of hardware autoscanning takes place during the
upgrade process, and for reasons that are a mystery to me it saw only one
drive -- physically, drive B.

How do get things back so that both drives are usable? (Preferably with the
same labels as before: drive A -> /media/cdrom0; drive B -> /media/cdrom1)

  Doc

-- 
Web:  http://www.sff.net/people/N7DR

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