One of the most fun ways to see how 'simple' it all is, is to add 'init=/bin/sh' to the kernel command line. The kernel starts, you get a shell. It's then possi

One of the most fun ways to see how 'simple' it all is, is to add 'init=/bin/sh' to the kernel command line. The kernel starts, you get a shell. It's then possible to do a lot just with shell built-ins (e.g. 'echo *' for ls).