Diskless client problems

[Ben Sagal <bmsagal@gmail.com>]

I have a few diskless clients setup, using a read-only nfs root, and
with a tmpfs mounted for /var, /home and /tmp.  The system regularly
prints the following messages:
   nfs: server 192.168.1.1 not responding, still trying
   nfs: server 192.168.1.1 OK
the output from mount on the client is:
   /dev/root on / type nfs
(ro,v2,rsize=4096,wsize=4096,hard,udp,nolock,addr=192.168.1.1)

The server runs debian sarge. The nfs root also runs debian sarge
which was setup with debootstrap, and further configured from a
chroot.

Can anyone help me with this?

Ben