Comment 38 for bug 1295521

Since updating this morning, my Trusty install is now showing:

Apr 4 17:03:26 Gavin dbus[848]: [system] Activated service 'org.freedesktop.login1' failed: Cannot launch daemon, file not found or permissions invalid

libpam-systemd-204-5ubuntu16

Also can't mount external drives and anything else that depends on policykit. Can unlock admin under settings either although I am in the 'adm' group.

For example, trying to run update-manager yields:
org.freedesktop.PolicyKit.Error.Failed: ('system-bus-name', {'name': ':1.178'}): org.debian.apt.update-cache