The passwd file is in an inconsistent state, someone did not clean up a lock on it. We are using the same way to add users everyone else uses, so it's not our fault :)
** Changed in: apt (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1606000 Title: package apt 1.2.12~ubuntu16.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1606000/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs