Comment Re:If you like your linux hard (Score 2) 185
Installing Gentoo is not difficult per se, but it's certainly an effective way to learn low level system administration and a lot about the Linux ecosystem. Now of course it's entirely possible to install Gentoo and not take away anything from it (i.e. just mindlessly copy-and-paste from the Gentoo Handbook and never attempt to understand what's going on), but even if you just apply minimal effort, it's a great way to learn a lot about Linux.
For example, a typical Stage 3 install will involve manually partionioning (possibly even using RAID/LVM), formating a FS, loop back mounting, chrooting, compiling a kernel, installing GRUB, adding users/groups, networking, cron, etc. That's just off the top of my head. If you make a mistake (like I did installing GRUB manually the first time), you can learn a whole lot more when you try to fix it.
Gentoo also has excellent documentation and, by virtue of being an niche/ethusiast distro, a much more advanced user base compared to most Linux distributions. I'm not saying there aren't folks on other distros that know more than someone using Gentoo, but on average, most Gentoo users (especially those active in their forums) tend to be fairly advanced users.
Finally, Gentoo is extremely flexible, so if you really want to get down to the nitty-gritty, it's certainly possible. Although Stage 1 installs (where you bootstrap your compiler) are no longer officially supported, there's active threads in the official forums on how to do it. If you want to play in the embedded space, Gentoo has one of the best cross-compiling systems out there (a benefit of being source based).
The long and short of it is, installing Gentoo is a great way for someone sincerely interested to learn a lot about Linux.