>From my reading of the above, it seems that this bug should be fixed in Yakkety, and probably also in up-to-date installations of Xenial.
I believe this is the bug I'm currently seeing (prefs.sh not sourced as privileged user) in both Yakkety and Xenial (lightdm versions 1.19.5-0ubuntu1 and 1.18.3-0ubuntu1 respectively). Should I open a new bug report tagged regression-update as mentioned above, or have I misunderstood in thinking it should be fixed in these versions? The symptom I'm seeing is that if I put commands into /etc/guest- session/prefs.sh requiring execution by a privileged user, the guest login loops back around to the login screen without any messages. Behaviour is the same in both Yakkety and Xenial with all packages up- to-date. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1581853 Title: Source prefs.sh as privileged user to allow user mods Status in lightdm package in Ubuntu: Fix Released Status in lightdm source package in Xenial: Fix Released Bug description: [Impact] including [Test Case] The Ask Ubuntu question <http://askubuntu.com/q/771080> called my attention to a regression in 16.04 as regards the possibilities for the system owner to configure the guest account. Up to 15.10 you can put e.g. this line in /etc/guest-session/prefs.sh: adduser $USER somegroup But if you try that in 16.04, the guest session won't launch. The explanation is that after the reorganization of the guest session code in 16.04, prefs.sh is sourced by /usr/share/lightdm/guest- session/setup.sh, which is not run as root. The linked merge proposals restore the previous behavior by letting prefs.sh be sourced by /usr/sbin/guest-account again. [Regression Potential] Low. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1581853/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
