Did this many years ago, it's fun. Just checked it quick again, the basic steps remain the same. It still requires a separate partition, I would add a chapter

Did this many years ago, it's fun. Just checked it quick again, the basic steps remain the same. It still requires a separate partition, I would add a chapter about: how to use loop device to mount a file as a device, then how to get LFS built on that loop-file and run it inside a virtualbox or kvm, to make it non-intrusive and safe to play with for beginners. Many beginners will install their linux under one partition, and they probably do not have a second partition to try LFS, so a file-based approach, with virtual machine in mind, could be easier to attract users?