Once the kernel loads, you wind up at a terminal prompt, where you use the on-screen keyboard to type a command. It's slow, but you can run quite a few Linux commands -- all from within a PDF.

In Linux Kernel in a Nutshell , author Greg Kroah-Hartman shows you how to build, configure and install a custom Linux kernel. You can get the e-book ...

I'm a Linux poseur. But a new Linux book, Greg Kroah-Hartman's Linux Kernel in a Nutshell, could help people like me get some real technical chops. I've had nerd tendencies for decades.