This bug was fixed in the package lightdm - 1.13.1-0ubuntu2
---------------
lightdm (1.13.1-0ubuntu2) vivid; urgency=medium
* debian/guest-account.sh:
- Rename variables to make script compatible with Bash (LP: #1411100)
* debian/control:
- Set required version of bash
-- Robert Ancell <robert.anc...@canonical.com> Wed, 21 Jan 2015 12:20:42
+1300
** Changed in: lightdm (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1411100
Title:
Guest user not removed after guest session ends when using bash as
default shell
Status in lightdm package in Ubuntu:
Fix Released
Status in lightdm source package in Precise:
Triaged
Status in lightdm source package in Trusty:
Fix Committed
Status in lightdm source package in Utopic:
Fix Committed
Bug description:
The /usr/sbin/giest-account script contains a bug which prevents the
removal of guest accounts:
$ sudo /usr/sbin/guest-account remove guest-Hhiook
/usr/sbin/guest-account: line 129: UID: readonly variable
Maybe this is related to /bin/sh actually beeing a Bash:
$ ll -d /bin/sh
lrwxrwxrwx 1 root root 4 Jan 1 01:44 /bin/sh -> bash*
But since using Bash as default sh is still a "feature" of Ubuntu, all
scripts should work with both.
Running the script with dash actually works:
$ sudo dash /usr/sbin/guest-account remove guest-ZWCtva
umount: /tmp/guest-ZWCtva: mountpoint not found
umount: /tmp/guest-ZWCtva: mountpoint not found
Removing user `guest-ZWCtva' ...
Warning: group `guest-ZWCtva' has no more members.
Done.
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