I've got also the same problem. I don't get any bootchart log, and yes, /var is not in the root filesystem. It seems boot tries to set up network before mounting the filesystems.
-- Automatic interfaces not brought up on boot on edgy https://launchpad.net/bugs/60625 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs