The steps I used to reproduce are: docker run --rm -it ubuntu:bionic /bin/bash
then run apt update && apt install rsyslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766574 Title: Installation failed if systemd isn't installed: /var/lib/dpkg/info/rsyslog.postinst: 28: /var/lib/dpkg/info/rsyslog.postinst: systemd-tmpfiles: not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rsyslog/+bug/1766574/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs