[Fedora-livecd-list] Can update initrd.img before livecd-creator makes iso?

[Ed Sutton]

Can initrd.img be replaced *before* livecd-creator creates the ISO? Perhaps from the kickstart file?  Or is it simpler to mount the resulting ISO made by livecd-creator, copy, replace, and make new ISO?

My goal is make a build script that uses livecd-creator with a kickstart that that installs an updated kernel RPM package and creates a bootable live ISO with new initrd.img containing the updated /lib/modules/ for the updated kernel. 

Thanks in advance for any direction,

-Ed