MirBSD
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Screenshot of MirOS #10-current/i386
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| Developer | Thorsten Glaser, Benny Siegert, Ádám Hóka, others |
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| OS family | Unix-like, BSD |
| Working state | Current |
| Source model | Open source |
| Initial release | OpenBSD-current-mirabilos #0 (October 11, 2002) |
| Latest release | MirOS #10semel (March 16, 2008) |
| Latest preview | MirBSD-current (10uB4-20160117) (January 17, 2016) |
| Update method | Binary security updates for stable releases |
| Package manager | MirPorts, pkgsrc |
| Platforms | i386, SPARC |
| Kernel type | Monolithic |
| Default user interface | mksh, IceWM, evilwm |
| License | Mostly BSD, GPL, MirOS Licence |
| Official website | www |
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. It is intended to maintain the security of OpenBSD—from which it frequently synchronises code updates—with better support for European localisation. Since then it has also incorporated code from other free BSD descendants, including NetBSD, MicroBSD 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.
One of the project's goals is 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.
MirOS BSD originated as OpenBSD-current-mirabilos, an OpenBSD patchkit, but soon grew on its own after some differences in opinion between the OpenBSD project leader Theo de Raadt and Thorsten Glaser. Despite the forking, MirOS BSD is synchronised with the ongoing development of OpenBSD, thus inheriting most of its good security history, as well as NetBSD and other BSD flavours.
One goal was to provide a faster integration cycle for new features and software than OpenBSD. According to the developers, "controversial decisions are often made differently from OpenBSD; for instance, there won't be any support for SMP in MirOS". There will also be a more tolerant software inclusion policy, and "the end result is, hopefully, a more refined BSD experience".
Another goal of MirOS BSD is to create a more "modular" base BSD system, similar to Debian. While MirOS Linux (linux kernel + BSD userland) was discussed by the developers sometime in 2004, it has not materialised.
The most important differences to OpenBSD were:
Aside from cooperating with other BSDs, submitting patches to upstream software authors, and synergy effects with FreeWRT, there is an active cooperation with Grml both in inclusion and technical areas. Other projects, such as Debian are also fed with MirSoftware.
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