I have attached a new diff file for upstart together with a patch which shows the delta. This takes care of the potiential issue as far as upstart is concerned.
However... @Johannes: /etc/X11/Xsession.d/99cadence-session-start does not belong to the upstart package, so this does not really fix your specific situation. Actually I don't see the cadence package anywhere in the Ubuntu archive. To fix it for yourself, you may want to edit that file, so it uses the full path when calling upstart. Preventing ~/.profile from sourcing ~/.bashrc is another way. (Any manual edit of /usr/sbin /lightdm-session will get lost at the next update of the lightdm package.) ** Patch added: "upstart-diff-file.patch" https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1435492/+attachment/4357899/+files/upstart-diff-file.patch ** Changed in: upstart (Ubuntu) Status: Triaged => In Progress ** Changed in: upstart (Ubuntu) Assignee: (unassigned) => Gunnar Hjalmarsson (gunnarhj) ** Changed in: upstart (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to upstart in Ubuntu. https://bugs.launchpad.net/bugs/1435492 Title: Xsession.d script assumes that /sbin is in $PATH Status in upstart package in Ubuntu: In Progress Bug description: According to changelog.Debian from version 1.12.3 on lightdm is using "bash for the session to improve error handling" to fix #678421. Unfortunately this can break the session start up when the user sets the $PATH environment variable in ~/.bashrc. Then /sbin might no longer be in $PATH and /etc/X11/Xsession.d/99cadence-session-start won't find /sbin/upstart when calling "upstart --user" The mechanism is the following: 1. /usr/sbin/lightdm-session lines 37-42 source among others ~/.profile 2. The usual .profile of /etc/skel will source ~/.bashrc if the shell is Bash (and not /bin/sh) 3. ~/.bashrc (maybe) is setting $PATH without /sbin 4. upstart --user call fails as /sbin is not in $PATH Suggested solutions: * switch back to /bin/sh * make sure that /sbin is in $PATH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1435492/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp