I have the latest upstart as well (1.5-0ubuntu7). I do not have any invalid network interfaces. I do have the "Waiting for network configuration...", the "Waiting up to 60 more seconds for network configuration...", and the "Booting system without full network configuration..." messages every time I boot.
I looked at syslog from my last boot and I have noticed that my ethernet interface, eth0, has its state changed a number of times before finally being activated. I have attached the portion of the syslog that pertains to eth0. Perhaps this will tell you more than it does me as I am not sure what the log is telling me. ** Attachment added: "Partial syslog from last boot" https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/950662/+attachment/3135804/+files/Partial%20Syslog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/950662 Title: Waiting for network message on bootup when all network devices are up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/950662/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs