Linux Operating System
From CryptoParty
You have your choice of distributions/operating systems and installation medium.
For example, openSUSE: (install - basic docs)
"4.7GB DVD
Contains a large collection of software for desktop or server use.
Suitable for installation or upgrade."
"Live GNOME A GNOME desktop you can run from CD or from USB stick. Can be installed as is (no upgrade)."
"Live KDE A KDE desktop you can run from CD or from USB stick. Can be installed as is (no upgrade)."
"Network Downloads the installation system and all packages from online repositories. Suitable for installation or upgrade."
"openSUSE Derivatives Get one of the specialized distribution built on openSUSE."
Other Linux Distros (external links)