The BSD family tree

emmelaich wrote: post #4

SunOS should be in there too, not exactly sure where. -Off NET/2 or Reno probably.- Correction, off 4.0.something or earlier. See wikipedia.

Along with DEC Ultrix, and (kind of OSF/1, Tru64, etc).

There were lots of other proprietary BSD based systems in the 80s as well.

Re: The BSD family tree

#6

Post by elvinyung » Fri, Mar 17, 2017, 10:45 PM UTC

Heh. Between NetBSD 1.4 and Darwin/Mac OS X there's an entry that just says "(?)".

It's probably pretty well-known that question mark is NeXTSTEP, which was built at NeXT, the company that Steve Jobs founded after he left Apple the first time around. NeXTSTEP was built around BSD mostly because of Avie Tevanian's involvement in CMU's Mach kernel project.

Re: The BSD family tree

#7

Post by emmelaich » Fri, Mar 17, 2017, 10:47 PM UTC

drewg123 wrote: post #5

emmelaich wrote: post #4

SunOS should be in there too, not exactly sure where. -Off NET/2 or Reno probably.- Correction, off 4.0.something or earlier. See wikipedia.

Along with DEC Ultrix, and (kind of OSF/1, Tru64, etc). There were lots of other proprietary BSD based systems in the 80s as well.

Yeah, certainly Ultrix was one of the closest. Many diverged heavily though - HP/UX etc.

I guess they're confining the history to non-commercial (albeit semi-closed source) versions.

Re: The BSD family tree

#8

Post by lobster_johnson » Fri, Mar 17, 2017, 11:05 PM UTC

Here's a much bigger one that takes lots of Unix variants into account: https://www.levenez.com/unix/unix.png (from here [1]). Also available as a big PDF.

Edit: Updated with newest version.

[1] https://www.levenez.com/unix/

Re: The BSD family tree

#9

Post by bootload » Fri, Mar 17, 2017, 11:07 PM UTC

"4.4BSD Lite2 -> OpenBSD 2.3"

What happened with the 4.4BSD lite to OpenBSD fork? The next OBSD is a parent of NetBSD.

Re: The BSD family tree

#10

Post by tedunangst » Fri, Mar 17, 2017, 11:11 PM UTC

bootload wrote: post #9

"4.4BSD Lite2 -> OpenBSD 2.3" What happened with the 4.4BSD lite to OpenBSD fork? The next OBSD is a parent of NetBSD.

The openbsd 2.3 label is duplicated to prevent too many lines.