Because --no-virt uses a fsimage disk you can't create a /boot
partition. This kickstart will also work for creating the PXE files
inside a mock environment.
Also rename rhel-atomic-pxe-live.ks to fedora-atomic-pxe-live.ks
--make-pxe-live target generate live squashfs and initrd for pxe boot.
Also generates pxe config template.
--make-ostree-live is used for installations of Atomic Host. Additionally to
--make-pxe-live it ensures using deployment root instead of physical root of
installed disk image where needed. Atomic installation needs to be virt
installation with /boot on separate partition (the only way supported by
Anaconda currently). Content of boot partition is added to live root fs so that
ostree can find deployment by boot configuration.