OpenBSD/sgi

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.

The current port maintainers are Miod Vallat (miod@openbsd.org) and Joel Sing (jsing@openbsd.org).

Table of contents

History

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. The OpenBSD Mips support has since then been supported outside the OpenBSD project. As SGI hardware has become affordable and easy to get by, interest for an SGI port in the tree has increased. The final piece, a working 64 bit toolchain, is now available and the 64 bit SGI OpenBSD port is now available and managed in the OpenBSD source tree.

Current status

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.
In late 2007 the port was expanded with support for the wscons(4) framework. This makes it possible to use the glass console.

Supported hardware

For a complete system component and device driver listing for this architecture, see intro(4/sgi).
• O2 (aka Moosehead) with R5000, RM5200, RM7000, R10000 and R12000 CPUs. Level 2 caches are supported on all CPUs. RM7000 level 3 cache is supported.
• ahc(4) Adaptec AIC-7880 SCSI.
• mec(4) MAC-110 100MBit ethernet.
• com(4) built-in serial ports.
• fxp(4) built-in Intel i8255x-based (except the i82556) PCI ethernet, on the pci(4) bus.
• mavb(4) Moosehead A/V Board audio device.
• gbe(4) SGI Graphics Back End Frame Buffer, supporting wscons(4) console which supports X Windows.
• mkbc(4) built in PS/2 Controller.
• pckbd(4) PS/2 keyboards.
• pms(4) PS/2 mice.
• power(4) button.

Getting and installing

The latest supported OpenBSD/sgi release is OpenBSD 4.1. Here are the OpenBSD/sgi 4.1 installation instructions .

Snapshots are made available from time to time, in this location as well as in a few mirrors. Here are the OpenBSD/sgi snapshot installation instructions as well.

Due to kernel stability issues on this platform with the 4.2 codebase, the 4.2 release has been skipped on this platform. These problems have been fixed since, and sgi will be part of the regular releases starting with the next release, 4.3.

Projects & bugs left to fix

• Workaround for R10000 CPUs coherency behaviour
• Larger user VM space (currently limited to 2GB)
• Support more SGI hardware like Origin 200, Octane, etc
• Support for multiprocessor systems (not NUMA)