Comment 7 for bug 417964

there is a "/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0" lines in the fstab configuration

> With this setup I get a polkit authentication dialog when trying to unmount the
device - it says "Authentication is required to unmount devices mounted by
another user". Is it the same dialog you are getting?

Yes that's the same dialog there

> (Alos, in the future please include either a screenshot or the text from the
dialog - makes it easier to figure out what is going wrong)

ok, sorry about that will do it for the next bug