Public bug reported:
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.
** Affects: lightdm (Ubuntu)
Importance: Medium
Assignee: Gunnar Hjalmarsson (gunnarhj)
Status: In Progress
** Tags: regression-release
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https://bugs.launchpad.net/bugs/1581853
Title:
Source prefs.sh as privileged user to allow user mods
Status in lightdm package in Ubuntu:
In Progress
Bug description:
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1581853/+subscriptions
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