On Wed, 2016-12-28 at 13:42 +0100, Pascal Hambourg wrote: > Le 28/12/2016 à 11:19, Nimrod a écrit : > > > >> I guess I have to specify suitable permission in the above file. I > >> tried with: > >> > >> ENV{ID_FS_USAGE}=="filesystem|other|crypto", > >> ENV{UDISKS_FILESYSTEM_SHARED}="1", GROUP="users", MODE="0660" > >> > >> (on a single line), but it seems that GROUP and MODE are simply > >> ignored. > > > > Sorry, I'm wrong again: the above line actually sets suitable permission > > on /dev/sr0. > > Anyway I do not think that it helps. > > > So the problem is at mount point level. The cdrom is > > mounted under /media/CDROM, but whatever permission I give to /media the > > CDROM subdirectory is owned by user 1000 and nobody can umount it except > > user 1000 (that's me, but if another user mount it, "eject" prompts me > > with my own credentials in order to actually eject the CDROM). > > AFAIK, the ability for anyone to unmount the filesystem is not related > to the permissions on the mount point but to the "users" mount option. > > > I didn't find any way to mount /media/CDROM avoiding this annoying > > behaviour. > > Mount with a line in /etc/fstab with options noauto,users.
Well, actually that worked, but I was looking for a completely "udev" solution. Nevertheless, I'm happy with this solution too, so I marked the thread as solved. Thanks and happy new year to everybody! >