The error complains that files will be overwritten, but this code runs in the systemd-shim postrm script, which is after systemd-shim's files have been removed from disk. What does 'dpkg -S /usr/share/dbus-1 /system-services/org.freedesktop.systemd1.service' report in this situation?
** Changed in: systemd-shim (Ubuntu) Status: New => Incomplete ** Changed in: systemd-shim (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1773859 Title: upgrades to 18.04 fail To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1773859/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs