GNU/BSD Distributions: Desktop & Server (3):
Debian GNU/kFreeBSD is an operating system released by the Debian project. It uses the kernel of FreeBSD combined with a GNU based userland and glibc. The majority of software in Debian GNU/kFreeBSD is built from the same sources as Debian GNU/Linux.
Gentoo/FreeBSD (or Gentoo/FBSD, or G/FBSD) is an effort to create a complete FreeBSD-based Gentoo system, sharing the complete administration facilities of Gentoo with the reliability of the FreeBSD kernel and userland.
PacBSD is an independently developed, x86-64 general purpose GNU/BSD distribution versatile enough to suit any role. Development focuses on simplicity, minimalism, and code elegance. PacBSD is installed as a minimal base system, configured by the user upon which their own ideal environment is assembled by installing only what is required or desired for their unique purposes. PacBSD uses Archlinux’s Pacman package manager, which couples simple binary packages with an easy-to-use package build system.