OpenBSD/sgi runs on several 64 bit MIPS-based SGI servers and workstations.
OpenBSD/sgi is a fully featured 64 bit port and will thus only run on systems
based on 64 bit processors, i.e. R4000 and up.
A mailing list dedicated to the OpenBSD/sgi port is available at
To join the OpenBSD/sgi mailing list, send a message body of "subscribe
sgi" to email@example.com.
Please be sure to check our mailing list policy before
The current port maintainers are Miod Vallat
Table of contents
The OpenBSD/sgi port has its roots in the OpenBSD/arc
port created early in the OpenBSD history. Arc support was rather soon
discontinued due to the lack of interest and availability of decent hardware.
Eventually SGI hardware became more affordable and obtainable, and interest
for an SGI port in the tree increased.
The final piece, a working 64 bit toolchain, eventually became available and
allowed the 64 bit SGI OpenBSD port to appear in 2004.
Hardware support was initially limited to the O2 workstations. Efforts
to port to more systems did not really start until 2008, where the first
Octane support parts were introduced. This work was completed in 2009
with support for Origin family systems as well, allowing OpenBSD to be
the first free operating system to run on the Fuel workstations, and even
later, also on Origin 350 servers.
Currently OpenBSD/sgi runs in 64 bit mode and boots multi-user on supported
systems. Snapshots are made periodically as the port develops and expands.
Not all graphics options are supported on IP27 (Origin) and IP35 (Tezro)
systems yet; in this case the kernel will be limited to serial console
An X server, currently unaccelerated, is also available for IP32 (O2) systems.
For a complete system component and device driver listing for this architecture, see intro(4/sgi).
The following families are supported:
Note that Octane 3 and Origin 400 systems are completely different
architectures based on x86 processors, and as such are not supported
- IP27 (Origin) family:
Origin 2000 and Onyx 2 are not supported yet.
- IP30 (Octane a.k.a Speedracer) family:
Multiprocessor operation is supported.
- IP32 (O2 a.k.a Moosehead) family:
R5000, RM5200, RM7000 as well as R10000 and R12000 processors are supported.
RM7000 level 3 cache is supported.
- IP35 (Tezro) family:
Origin 300 and Onyx 300 are not supported yet.
- Origin 3000
- Origin 350
- Onyx 4 (currently limited to serial console)
- Onyx 350 has not been tested, but ought to work
since it is very similar to Origin 350.
The following devices are supported:
- Ethernet Adapters
- O2 mec(4) MAC-110 10/100Mbit ethernet.
- IOC3 iec(4) 10/100Mbit ethernet (this is the on-board interface found on Octane, Origin 200/2000/300/3000 and Fuel).
- Broadcom BCM57xx (a.k.a. Tigon3) bge(4) 10/100/Gigabit ethernet (this is the on-board interface found on Origin 350 and Tezro).
adapters, including wireless adapters.
- SCSI Host Adapters
- ahc(4) Adaptec AIC-7880 SCSI.
- isp(4) QLogic ISP SCSI.
- RS-232 Devices
- USB Controllers and Devices
- Fuel on-board ohci.
- Audio Devices
- O2 mavb(4) Moosehead A/V Board audio device.
- Video Devices
- O2 gbe(4)
Graphics Back End Frame Buffer, supporting wscons(4) console and X Window.
Impact (Mardigras) frame buffer commonly encountered on Octane systems.
Odyssey VPro frame buffer commonly encountered on Fuel, Octane 2, Onyx 350 and
Tezro, as well as some Octane systems.
- Input Devices
- Miscellaneous Devices
Getting and installing
The latest supported OpenBSD/sgi release is
Here are the
OpenBSD/sgi 4.8 installation instructions
Snapshots are made available from time to time, in
as well as in a few
Here are the
OpenBSD/sgi snapshot installation instructions
Projects (in no particular order)
- Larger user VM space (currently limited to 2GB)
- X11 support for Impact and Odyssey frame buffers.
- Kona frame buffer support
- SMP support on IP27 and IP35 (in progress)
- Fix IOC3 serial driver
(will bring Origin 2000, Onyx 2 and Origin 300 support)
- IOC4 ATAPI controller support
$OpenBSD: sgi.html,v 1.74 2010/11/01 22:06:58 jasper Exp $