Could you retry on Ubuntu 12.10 or 12.04 with all updates applied? A few months ago I spotted a race going on with udev which got fixed and pushed back to 12.04, would be interesting to know if that helped.
** Changed in: bridge-utils (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/919068 Title: bridge_ports all doesn't work at boot time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bridge-utils/+bug/919068/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs