Squashmount and aufs: Gentoo on tiny 4GB root! I came across a post about "squashing" certain directories on a Gentoo install (portage tree, portage db, /usr/src/, etc) much like those minimal-install-cd's use! AuFS is an improved "union" filesystem. I don't understand it all, but as a hardware engineer it's kinda like having a dual-port memory (I think). Given that many of the directories I want to squash also contain many, many tiny files, mashing them all together increases performance on disk reads (supposedly). My Eee PC 901 still functioning... I was intrigued as my little netbook has its SDcard slot occupied for quite some time with a 32GB card for the /usr directory (2GB swap space as well!). I wanted to change that. I wanted to see if I could actually use my netbook as an " ultra-portable internet-connected enduring-battery system..." and happen to run a really snappy source distro! The technique requires a very...