If anyone wanted to keep a museum piece Sun workstation running SunOS 4.x, but patching security vulnerabilities, maybe this is one way.
For `sun4c` kernel architectures (most SPARCs before multiprocessing), I'd try to get the source for 4.1.4. At least some of the older Sun-3 might need an older version, and I recall our Sun-386i systems were stuck at 4.0.x.
For `sun4c` kernel architectures (most SPARCs before multiprocessing), I'd try to get the source for 4.1.4. At least some of the older Sun-3 might need an older version, and I recall our Sun-386i systems were stuck at 4.0.x.