OpenBSD/landisk runs on machines related to the
IO-DATA USL-5P, using a
Hitachi/Renesas
SH-4 CPU.
This platform comes in a variety of models:
The current port maintainers are Dale Rahn (drahn@openbsd.org), Miod Vallat (miod@openbsd.org) and Michael Shalayeff (mickey@openbsd.org).
OpenBSD/landisk is the 1st OpenBSD port to a Hitachi/Renesas SH-4 based machine. It is hoped that other SH-4 based machines will show up which are interesting enough for our user and development community, but the SH-4 processor is normally used only in true embedded products.
Development is currently pretty active.
Currently there is a snapshot that can install the architecture (using a miniroot), and which is self-hosting. There are still many bugs to fix.
Snapshots are made available from time to time, in this location as well as in a few mirrors. Here are the OpenBSD/landisk snapshot installation instructions as well.
The IO-DATA cable converts from a DB9 connector to a 5-pin header (3.3V Tx Rx GND NC). Note that the Rx and Tx pins on the board are swapped compared to the ARM-based machines made by IO-DATA. All the board models have a 5-pin connector (called CN7) which the cable can plug into -- except for the USL-5P which has a 4-pin header (thus requiring removal of the spare pin).
A USL-5P is shown with a modified IO-DATA cable. In this case the cable
has been shortened significantly and the DB9 connector is glued into a slot
carefully cut into the plastic between the ethernet and a USB port.