I found an upstream bugreport detailing the actual issue in ifupdown source on debian's bugtracker here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=757291
** Bug watch added: Debian Bug tracker #757291 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=757291 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1375821 Title: ifupdown doesn't bring loopback to state up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1375821/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs