Public bug reported: Got the following when going from trusty to xenial.
Preparing to unpack .../init-system-helpers_1.24ubuntu1_all.deb ... Unpacking init-system-helpers (1.24ubuntu1) over (1.14) ... dpkg: error processing archive /var/cache/apt/archives/init-system-helpers_1.24ubuntu1_all.deb (--unpack): trying to overwrite '/bin/running-in-container', which is also in package upstart 1.12.1-0ubuntu4.2 ** Affects: init-system-helpers (Ubuntu) Importance: Undecided Status: New ** Affects: upstart (Ubuntu) Importance: Undecided Status: New ** Tags: trusty2xenial xenial ** Also affects: upstart (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to init-system-helpers in Ubuntu. https://bugs.launchpad.net/bugs/1511899 Title: init-system-helpers and upstart need to conflict/replace To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/init-system-helpers/+bug/1511899/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs