On Mon, 2016-12-26 at 18:29 +0100, Pascal Hambourg wrote:Sorry, I'm wrong again: the above line actually sets suitable permission on /dev/sr0. 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).Sorry, you're right. I followed the above suggestion, but the result is not a great step forward: if another user tries to eject the cdrom, he's asked with the password of the user who logged for first.Le 26/12/2016 à 17:28, Nimrod a écrit : > On Sat, 2016-12-24 at 05:20 +0100, Michael Biebl wrote: > >> Does it help if you mount the cdrom as shared? >> See https://udisks.freedesktop.org/docs/latest/udisks.8.html → >> UDISKS_FILESYSTEM_SHARED > > No, it doesn't. The disk is already mounted in a shared directory, but > its name is "/media/<user>/CDROM", and permissions are restricted to > <user> only, where <user> is the one who first logged in the Gnome > desktop. /media/<user> is not a shared directory.
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.
Thanks a lot anyway.