Looks like we may have a fix for this. There is a test package in the PPA below for those who can test:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/fan- fixes/+packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737640 Title: /usr/sbin/fanctl: arithmetic expression: expecting primary | unconfigured interfaces cause ifup failures To manage notifications about this bug go to: https://bugs.launchpad.net/juju/+bug/1737640/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs