GNU Mach

GNU Mach is an implementation of the Mach microkernel. It is the default microkernel in the GNU Hurd. GNU Mach runs on IA-32 machines. GNU Mach is maintained by developers on the GNU project. It is distributed under the terms of the GNU General Public License (GPL).

GNU Mach
Developer(s)GNU Project
Stable release
1.8 (stable) / December 18, 2016 (2016-12-18)[1]
Repository
Operating systemUnix-like
TypeKernel
LicenseGNU General Public License
Websitewww.gnu.org/software/hurd/microkernel/mach/gnumach.html

History

Early versions of the Hurd were developed on top of CMU's Mach 3.0.[2]

In 1994, CMU stopped working on Mach, and the GNU Project switched to the University of Utah's Mach 4. The kernel known as "GNU Mach" was derived from Mach 4 once Utah stopped development. The first ChangeLog entry by Thomas Bushnell (rather than by a Utah researcher) is from 16 December 1996.[3][4][5]

In 2002, Roland McGrath branched the OSKit-Mach branch from GNU Mach 1.2, intending to replace all the device drivers and some of the hardware support with code from OSKit. After the release of GNU Mach 1.3, this branch was intended to become the GNU Mach 2.0 main line; however, as of 2006, OSKit-Mach is not being developed.[6][7][8]

GNU Mach 1.4 was released on 27 September 2013, eleven years after 1.3.[9]

Version history
  • Version 1.0 was released on 14 April 1997.
  • Version 1.1.1 was released on 12 May 1997.
  • Version 1.1.2 was released on 10 June 1997.
  • Version 1.1.3 was released on 12 June 1997.
  • Version 1.2 was released on 21 June 1999.
  • Version 1.3 was released on 27 May 2002, and features advanced boot script support, support for disks larger than 10 gigabytes and an improved console.[7]
  • Version 1.4 was released on 27 September 2013.
  • Version 1.5 was released on 10 April 2015.
  • Version 1.6 was released on 31 October 2015.
  • Version 1.7 was released on 18 May 2016.
  • Version 1.8 was released on 18 December 2016.
gollark: For the bottled version, you have to produce the plastic and labels and such and bottling plants, which I believe are nontrivial.
gollark: You can get free tap water here, just not in bottles.
gollark: No it isn't. If you want complex things you need to handle more complex coordination.
gollark: The economy is complicated. Products are complicated. If you want them to not be, enjoy not having good computers and pharmaceuticals.
gollark: Even if magical coordination™ worked in the past, would it work *now*?

References
  1. "GNU Hurd 0.9, GNU Mach 1.8, GNU MIG 1.8 released". www.gnu.org. Retrieved 31 December 2016.
  2. Initial announcement of the Hurd, mentioning Mach 3.0
  3. www.gnu.org/software/hurd/history/hurd-flash6
  4. "Re: Which Mach is GNU Mach?" e-mail from Roland McGrath to Pontus Lidman on the debian-hurd mailing list (25 Aug 1999)
  5. A GNU Mach ChangeLog
  6. OSKit-Mach announcement
  7. GNU Mach 1.3 release announcement
  8. "Re: mach4 & gnumach/oskit..." e-mail by Thomas Schwinge to bug-hurd mailing list (10 Oct 2006)
  9. Schwinge, Thomas (2013-09-27). "Happy 30th birthday, GNU! GNU Mach 1.4 released". article.gmane.org. Retrieved 2017-09-21.
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