OpenBSD/zaurus is an effort to make OpenBSD run on several PDAs of the Sharp Zaurus family. Initially targeted is the C3000/C3100/C3200 models which contain a 4GB CF hard drive internally.
The OpenBSD/zaurus port was discontinued after the 6.0 release.
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Shortly after Sharp unveiled its first Zaurus machines, some OpenBSD developers started dreaming of running OpenBSD on it, to have the smallest possible ssh-capable machine!
After the OpenBSD/cats was completed in order to benefit from a good ARM development platform, work on the Zaurus hardware started in 2004. Since the Zaurus was a fully capable machine, we didn't cross compile. All builds of Zaurus were done on the Zaurus directly.
Eventually, the OpenBSD/armv7 port development broke arm userspace on zaurus. Since there were effectively no remaining users, it was removed instead of splitting the userlands.
Hardware support is mostly complete and quite stable. The Zaurus boots multiuser and X11 runs. Most PCMCIA/CF devices work (such as wireless/ethernet cards), as well as host USB, SD/MMC memory cards and the keyboard and touch screen are supported by X11. Audio playback is working, and the machine is of course able to suspend much like a regular laptop. Even the processor performance mode can be adjusted with apmd(8), just like on other platforms.
Devices that can be connected:
The last supported OpenBSD/zaurus release was OpenBSD 6.0. Here are the OpenBSD/zaurus 6.0 installation instructions.