The usefulness of the policy aside (it is configured wide open), I still can't reproduce with http://cdimage.ubuntu.com/ubuntu- server/daily/current/disco-server-amd64.iso that I just downloaded:
$ sudo ufw default allow incoming Default incoming policy changed to 'allow' (be sure to update your rules accordingly) $ sudo ufw default allow outgoing Default outgoing policy changed to 'allow' (be sure to update your rules accordingly) $ sudo ufw default allow routed Default routed policy changed to 'allow' (be sure to update your rules accordingly) $ sudo ufw allow rsync Rules updated Rules updated (v6) $ sudo ufw allow ssh Rules updated Rules updated (v6) $ sudo ufw enable Command may disrupt existing ssh connections. Proceed with operation (y|n)? y Firewall is active and enabled on system startup $ cat /proc/version_signature Ubuntu 5.0.0-8.9-generic 5.0.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1823862 Title: disco: unable to enable ufw To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ufw/+bug/1823862/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs