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OpenBSD/sun3 OSREV runs on most Sun3 machines, including:
3/50, 3/60, 3/110
3/75, 3/150, 3/160
3/260, 3/280
OpenBSD/sun3 OSREV does not run on the Sun3/80 (sun3x class)
because the sun3x MMU and other devices are very different.
The minimal configuration requires 4M of RAM and ~80MB of disk space.
To install the entire system requires much more disk space (approx.
100MB additional space is necessary for full sources). To run X
or compile the system, more RAM is recommended. Good performance
requires 8MB of RAM, or 16 MB when running the X Window System.
The following Sun3 hardware is supported:
Serial ports (RS232):
built-in ttya, ttyb
Video adapters:
bwtwo, cgtwo, cgfour
Network interfaces:
On-board Lance Ethernet (le)
On-board or VME Intel Ethernet (ie)
SCSI: (Most SCSI disks, tapes, CD-ROMs, etc.)
On-board "si" (SCSI-3) [Note 1]
VME "si" (SCSI-3) board [Note 1]
SMD Disks: (the big, heavy ones 8^)
Xylogics 450/451 [Note 2]
Xylogics 753/7053 [Note 2]
Input devices:
Sun keyboard and mouse
Miscellaneous:
Battery-backed real-time clock.
Note 1:
The "si" driver now supports DMA and disconnect/reselect
but due to the immaturity of the DMA code, those features
are disabled by default. To enable DMA (and get faster
SCSI performance) patch the variable si_options in the
file /usr/src/sys/arch/sun3/dev/ncr_si.c as indicated.
Note 2:
SMD disk support is almost ready, but could not be tested
in time for this release. Drivers are provided for the
Xylogics 450/451 and Xylogics 753/7053 VME boards only as
source code. They compile but have never touched a disk.
If it's not on this list, there is no support for it in this release.
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