Cleanup handling of livecd creation in ks %post.
Cleanup handling of livecd creation in ks %post.

ykhodorkovskiy/clip,tomhurd/clip,tomhurd/clip,tomhurd/clip,rprevette/clip,rprevette/clip,ykhodorkovskiy/clip,rprevette/clip,tomhurd/clip,tomhurd/clip,ykhodorkovskiy/clip,tomhurd/clip,ykhodorkovskiy/clip,rprevette/clip