If you're doing pxe (which I fully support) and installing a full release why would you have anything more than a kernel, initrd, and pressed file? Take about

If you're doing pxe (which I fully support) and installing a full release why would you have anything more than a kernel, initrd, and pressed file? Take about 4 minutes to build from scratch. Containers of corse are a different issue, but I'd probably use something like coreos as the host in that case.