I found an article from 2007 on how to install Linux without using a USB stick or a CD at http://www.instantfundas.com/2007/08/install-any-linux-distro-directly-from.html. I was wondering if anyone could tell me whether this still works, given it's five years old. For starters I found that the initrd.gz file doesn't seem to exist but a initrd.lz file does.
Edit: And when I do try it, I get an "Error 21: Linux kernal must be loaded before initrd".