In fact, while it's clearly a dpkg bug that it's tripping an assertion, the proximate cause is ufw's trigger failing as follows:
Sep 3 08:16:40 in-target: Processing triggers for ufw ... Sep 3 08:16:51 kernel: [17312.770421] ip_tables: (C) 2000-2006 Netfilter Core Team Sep 3 08:16:52 in-target: iptables-restore v1.4.0: Sep 3 08:16:52 in-target: iptables-restore: unable to initialize table 'filter' Sep 3 08:16:52 in-target: Sep 3 08:16:52 in-target: Error occurred at line: 1 Sep 3 08:16:52 in-target: Try `iptables-restore -h' or 'iptables-restore --help' for more information. Sep 3 08:16:52 in-target: ERROR: problem running iptables Sep 3 08:16:52 in-target: Sep 3 08:16:53 in-target: dpkg: subprocess post-installation script returned error exit status 1 Sep 3 08:16:54 in-target: E: Sep 3 08:16:54 in-target: Sub-process /usr/bin/dpkg returned an error code (2) (I don't suppose that the fix for bug 261323 takes care of this? I don't think so, but wasn't sure.) ufw needs to be careful not to touch the firewall when running inside a chroot like this. This will also make sure that it doesn't accidentally fire on things like live CD builds, which could have undesirable consequences. -- dpkg: ../../src/packages.c:221: process_queue: Assertion `dependtry <= 4' failed. https://bugs.launchpad.net/bugs/262451 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs