Re: MacOS X and OpenBSD

[Michael Lankton <mlankton@home.com>]

All NeXT Mach OS variants (NEXTSTEP/OPENSTEP/Apple Rhapsody) have used
the mach 2.x kernel on top of a BSD 4.3 based system.  Mac OS X Server,
Darwin and Mac OS X use a mach 3.0 based kernel on top of a BSD 4.4
based system, and yes, I believe they used FreeBSD as a template for the
bsd layer.
Mac OS X/X Server and the NeXT operating systems that preceded them are
much more than simply a mach kernel running on top of a bsd based
system, but this isn't comp.sys.next.advocacy so I'll shut up :)

Brad wrote:
> 
> Yes, MacOS X has bits and pieces from OpenBSD/NetBSD/FreeBSD, most of
> the kernel is FreeBSD, most of the libraries are from NetBSD and the
> userland I beleive is a mix of OpenBSD/NetBSD.