CentOS/Redhat kickstart script cdrom mount point
Solution 1:
The %post section won't do what you need without some extra work - you need to do this copy inside a %post --nochroot section so you have access to the CD. You can probably issue a mount command inside %post, but using %post --nochroot is likely easier. I don't remember the source ISO layout offhand, but it'll be there somewhere.