NetBSD/sun3 is the port of NetBSD to the Sun Microsystems sun3, and sun3x series of computers, which are based on the Motorola 68020 and 68030 CPUs respectively, with a Sun-designed custom MMU. Sun sold these computers as both servers and desktop workstations from the mid to late 1980's. They were superseded by the sun4 SPARC RISC systems, which are supported by NetBSD as NetBSD/sparc.
Nathan Williams and Jeremy Cooper are the maintainers of NetBSD/sun3.
Supported System Models
NetBSD/sun3 runs on these sun3 and sun3x architecture machines:
The RAM column is maximum supported RAM in megabytes.
Sun made a variety of VME bus cabinets with different numbers of bus slots; ultimate RAM and I/O expansion is more a matter of how many bus slots there, rather than the particular CPU you have.
The Sun3/80 RAM capacity varies with the boot ROM revision - 3.0.2 allows 40MB, 3.0.3 allows 64MB.
The Sun 3/50 has 4MB soldered on the motherboard; all RAM expansions for that workstation were provided by third-party solutions (read "hacks") of one kind or another.
The Sun 3/E is a 6U VME single-board computer intended as an embedded system component.
The Sun 3/80 workstation and Sun 3/400 series servers are sun3x architecture machines based on the Motorola 68030 CPU. They were Sun's last design using Motorola microprocessors, and were somewhat complicated by the fact that the mc68030 has an integrated MMU in the CPU chip.
Sun Microsystems stopped designing systems with Motorola microprocessors when their own SPARC CPU design became a commercial success.
Features of NetBSD/sun3
Disk and RAM Requirements
4MB RAM, ~80MB disk
8MB RAM, 200MB disk
Normal + X11
16MB RAM, 300MB disk
The complete NetBSD sources without objects require 200MB of disk.
To run the X Window System or compile the NetBSD system sources (i.e. development), more RAM and disk are recommended. Good performance requires 8MB of RAM, or 16MB of RAM when running the X Window System.
The following Sun3 devices are currently supported:
If you have a device that's not listed, it might be compatible with something else, or we might have simply forgotten it. If all else fails, maybe you could write a driver!
Note: The Sun VME sc SCSI card is not yet supported.