I want to end up with a bootable DVD that will automagically start the kickstart script and perform an unattended install. I have read a few things that say that ks.cfg must be in the root of the image. I've read other things that say that isolinux/ is really the root, and so the ks.cfg must be there. Neither work. In my isolinux.cfg, I have:

label ks
kernel vmlinuz
append ks=cdrom:/ks.cfg initrd=initrd.img ramdisk_size=8192

ks.cfg is in isolinux/ as well as the top-level directory. What am I missing? How do I get the booted OS to read and use ks.cfg?

The ks.cfg needs to be in the top-level directory on the cdrom. Then just change the line you have below to:

append ks=cdrom initrd=initrd.img ramdisk_size=8192

This will dump the installer into kickstart mode and tell it to look into to the cdrom (top-level directory) for the ks.cfg.

I am trying also to achieve a bootable dvd. I have made the suggested edits . I have tried entering "linux ks=cdrom/ks.cfg" at the boot prompt
but I get question asking what language I want to use and then it teels me it cannot find the kickstart file.

I have placed ks.cfg in the top directory and made the suggested edit to islinux.cfg without success ??

Use this at the boot prompt if you put the ks.cfg in the isolinux directory for example:

linux ks=cdrom:/isolinux/ks.cfg

There should be no need to edit any other files.