I think my previous two comments really have nothing to do with the actual problem. Me just grasping at straws trying to find some kind of information. The following patch is a hack and not anywhere close to a solution but does make the /etc/init.d/networking script complete during shutdown.
** Patch added: "networking.patch" http://launchpadlibrarian.net/46522420/networking.patch -- dhclient3 hangs on shutdown https://bugs.launchpad.net/bugs/571933 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dhcp3 in ubuntu. -- 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