Elive
Description
Elive is a Linux distribution based on Debian GNU/Linux optimized for legacy and commodity hardware. Elive uses the Enlightenment X window manager instead of GNOME or KDE. Elive is a fully functional distributions with a Live CD counterpart that allows the user to experience the distribution before installing it to the system.
Elive can be used like any Live CD, or installed to the hard drive to have access to advanced features. Elive utilizes UnionFS, which allows users to install software packages using Synaptic and or APT, while the users computer is running from the Live CD. Installing to the hard drive yields massive customization possibilities, and the helpful elive-skel tool, which can restore configuration files after just upgrading.