I can reproduce this in a minimal VM by purging policykit-1, restarting systemd, and installing a service:
sudo dpkg -P policykit-1 apport sudo systemctl daemon-reexec sudo apt-get install policykit-1 apport This reminds me a lot of bug 1423811, but this might actually lead to a simpler test case and a different angle for understanding this. Workaround: Install policykit-1 first, then reboot, then install everything else. Thanks for your report! ** Changed in: systemd (Ubuntu) Importance: Undecided => High ** Changed in: systemd (Ubuntu) Status: New => In Progress ** Changed in: systemd (Ubuntu) Assignee: (unassigned) => Martin Pitt (pitti) ** Tags added: systemd-boot ** Also affects: systemd (Ubuntu Vivid) Importance: High Assignee: Martin Pitt (pitti) Status: In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1447654 Title: installing policykit-1 hangs under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1447654/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs