MirOS BSD
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MirOS BSD (originally called MirBSD) is a free and open source operating system which started as a fork of OpenBSD 3.1 in August 2002.<ref name="origins">Birthing point for MirOS</ref> It was intended to maintain the security of OpenBSD with better support for European localisation. Since then it has also incorporated code from other free BSD descendants, including NetBSD, MicroBSD (owned by DamnSmallBSD<ref>Template:Cite web</ref>) and FreeBSD. Code from MirOS BSD was also incorporated into ekkoBSD, and when ekkoBSD ceased to exist, artwork, code and developers ended up working on MirOS BSD for a while.
Unlike the three major BSD distributions, MirOS BSD supports only the x86 and SPARC architectures.
History
MirOS BSD originated as OpenBSD-current-mirabilos, an OpenBSD patchkit, but became a separate project after differences in opinion between the OpenBSD project leader Theo de Raadt and Thorsten Glaser.<ref name="origins" /><ref>Template:Cite web</ref> Despite the forking, MirOS BSD was synchronised with the ongoing development of OpenBSD, thus inheriting most of its good security history, as well as NetBSD and other BSD flavours.<ref>Template:Cite web</ref>
One of the project's goals was to be able to port the MirOS userland to run on the Linux kernel, hence the deprecation of the MirBSD name in favour of MirOS. While MirOS Linux (linux kernel + BSD userland) was discussed by the developers sometime in 2004,<ref>Template:Cite web</ref> it has not materialised.