NFS mount fails in post-install step

[Ajay Shekhawat <ajay@xxxxxxxxxxxxxxxxx>]

I'm trying to install a RH7.1 machine via NFS. The install works fine.
However, in the post-install step I'd like to update the packages, and
do some other cleanup. However, the mount command just hangs. Here's
what I'm doing:

	%post
	mkdir /tmp/mnt
	mount -n XX.YY.ZZ.AA:/export/RH7.1/updates /tmp/mnt
	cd /tmp/mnt
	rpm -Fvh *.rpm

The mount command above just hangs. A "ps auxww" in Alt-2 virtual screen
shows the process in a "D" state (waiting for a device?).

Any ideas?

Ajay