Well, yeah. I meant the Mach BSD personality made up on the later stuff was
later than the original stuff. I think they used the BSD Light 4.4 stuff --
but I may be mistaken.
I thought the OS/x stuff was later than Machi3... I thought it started with
Utah's Mach4 stuff... (not UCB... brain fart).
http://www.cs.utah.edu/flux/mach4/html/Mach4-proj.html
This was in 1995 which was before the OS X stuff came out in '99.
(or is OS X internally still NextStep's Mach3 stuff upgraded????)
Bill
On 2/2/07, Al Kossow <aek at bitsavers.org> wrote:
the Mach stuff from BSD
The Mach kernel is from CMU
The BSD layer on top of the original Mach on VAXen and
Sun boxes had USL encumbrances. The BSD used in OS X
is based on FreeBSD, which does not. This should all be
described on the Darwin site.