Comment LFS (Score 4, Interesting) 185
Linux From Scratch boosted my Linux knowledge about a hundredfold. I cut my teeth on a modified LFS 5.1. Following the instructions, while tedious, was doable and straightforward. What made it more difficult for me was that my host distro was a bit too old for the then-current LFS (5.1). With a slow and expensive internet connection, downloading an entire distro was out of the question. Downloaded the official tarballs, mixed and matched on my Celeron 366, and I eventually got it up and running.