PXE - kicktart %post problem

[Justin Herrmann <herrmann farm ecs umass edu>]

I've seen a few posts about the kickstart %post section
failing but none of these seem to be related to my problem.
I'm doing a pxelinux - kickstart - nfs install.  The nfs and dhcp3.0
servers on the same redhat 7.3 box.  My kickstart file correctly
builds the new machine and makes the authorized_keys, but when
I try to mount the nfs (located in 192.168.14.1:/tftpboot) and
copy a file to the new system kickstart fails.

---------------snip----------------------

%post
#put my key in place.
mkdir /root/.ssh
touch /root/.ssh/authorized_keys
#
mkdir /mnt/myupdate
mount 192.168.14.1:/tftpboot /mnt/myupdate
cd /
cp /mnt/myupdate/lmsensorsInst.tar.gz .
umount /mnt/myupdate

---------------snip----------------------


I wonder if anyone can tell me what I'm doing wrong?
Also where does kickstart send the error output?
Thanks in advance.

-JH