still not behaving with Ubuntu 7.04 or 6.10. In 6.10, at least it gets the nfs-premount scripts, and then tries (and fails, due to a missing colon) the /root directory from the NFS server.
Reminds me of the autoinst days of long past. Took a while to figure out how to get Irix booted diskless, but once that happened and I could do it reliably, the rest was easy…. er … yeah… easy.