This seems to be a bug in command-not-found, Python, or any of the libraries it used. For further investigation, we need a core dump from that process, did apport not prompt you for that?
** Package changed: apt (Ubuntu) => command-not-found (Ubuntu) ** Changed in: command-not-found (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940503 Title: Illegal instruction (core dumped) on apt update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/command-not-found/+bug/1940503/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs