I'm closing the LTSP task as LTSP 5.5.6 got released and was published in Xenial without the fix being included, and the newer ifupdown makes the fix not necessary anymore.
** Changed in: ltsp (Ubuntu) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1492546 Title: ifdown stops LTSP's "manual" interface on shutdown To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1492546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs