[Tfug] fail to read cdrom in ubuntu

[Claude Rubinson]

On Wed, Dec 16, 2009 at 04:07:26PM -0600, JD Rogers wrote:
> > Debian Testing system.  It seems that some daemon has remapped my
> > cd-drive to /dev/cdrom3.  The only reason that I happened to figure it
> > out was by trying to play a DVD with SMPlayer, which complained when
> > it couldn't find a disc in /dev/cdrom and autodetected /dev/cdrom3.
> > Bah!
> 
> That's *probably* different. That may be fixable by linking /dev/cdrom
> to the proper device. You can test if it is the same problem as me by
> inserting a data disk in the drive and then try mounting it manually
> using the correct device (hda, sr0, whatever). If it fails with no
> media found, see if it works for a dvd data disk. My issue is that dvd
> works, but cdrom's do not.

You're right.  Mine issue is pretty straightforward in that it seems
that some daemon thinks it knows better than me how to label my
hardware.  The fact that you can mount DVDs but not CDs is especially
perplexing.  That's why I was wondering if it might be a mangled
symlink somewhere.

I'm assuming that from the /dev/sr0 nomenclature, you've got a scsi
drive?  Any chance that a kernel module didn't make it through the
Ubuntu upgrade?

Claude