There's also the issue with dbus's helper which is what causes compiz crashes taking down the session when screensaver fires (which tends to break upgrade even before udev / udisks2 clash). I'm testing a fix for that now.
** Changed in: dbus (Ubuntu) Milestone: None => ubuntu-16.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1555237 Title: Upgrade from 14.04.4→ 16.04 dies midway taking out the session. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1555237/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs