Kickstart - moving on from %pre?

I've used %pre to run a small script to change the IP address. That script appears to have run correctly, as the address is changed, but the system also isn't moving on with the install. I appended --erroronfail and --log=/mnt/sysimage/root/ks-pre.log That log file has been touched but is empty. I don't remember having to add anything in %pre to say, "OK, you're good, time to move on!" What do I need to do to have kickstart continue to run?