Martin-Éric Racine, the postinst script already tries to start CUPS at first, so the system of the original poster seems to be rather broken (misconfigured cupsd.conf or AppArmor bug in the cupsys package).
-- package cups-pdf 2.4.6-3ubuntu3 failed to install/upgrade: https://bugs.launchpad.net/bugs/133743 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs