DruidBSD is a FreeBSD micro-distribution that supports CD/DVD, USB, and HD booting into a Live BSD Distribution.
The goal of llama-X is to be a cutting-edge desktop operating system for the x86 architecture. A new object-oriented filesystem, and a fresh new desktop paradigm, and an innovative multikernel subsystem are main features of the system.
OFBootMenu is a boot selector for the Pegasos platform written in Forth. A simple configuration file specifies the set of operating system choices and the commands used to boot each one.
The OpenBIOS project provides you with most free and open source Open Firmware implementations available. Here you find several implementations of IEEE 1275-1994 (Referred to as Open Firmware) compliant firmware.