newbie nfs kickstart question

["Drew Shuller, Net-Sieve, INC" <drew net-sieve com>]

Hello all, here's a question from a linux amateur.

I'm trying an nfs install of redhat 7.3, and my ks.cfg file is on an nfs
drive on one of my servers. I created a boot disk, and modified the
syslinux.cfg file as shown below. I boot up the machine and type
"ks=nfs:myserver.com:/rh/ks.cfg" at the prompt. Everything seems to go well,
loading initrd.img and vmlinuz, then lots of messages, ending with:

Mounting /proc filesystem
mount error 22, pivot root failed:2
kernel panic: no init found, try passing init= option to kernel

Then everything stops.

Here's my syslinux.cfg file from the boot floppy:

prompt 1
display boot.msg
timeout 1000
label linux
        kernel vmlinuz
        ks=nfs:myserver.com:/rh/ks.cfg   append initrd=initrd.img


Lots of questions: where exactly in the boot process is my maching hanging?
What do I need to change in my syslinux file, or do I need to type something
different at the prompt? At the point where I get the kernel panic, had the
machine expected something from the dhcp/bootp server? Am I even getting
that far?

Many thanks,

Drew
Austin, TX