From owner-freebsd-questions@FreeBSD.ORG Thu Oct 2 06:46:03 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 15B1116A4B3 for ; Thu, 2 Oct 2003 06:46:03 -0700 (PDT) Received: from fe3.cox-internet.com (fe3-cox.cox-internet.com [66.76.2.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7F85843FDD for ; Thu, 2 Oct 2003 06:46:01 -0700 (PDT) (envelope-from daved@nostrum.com) Received: from nostrum.com ([66.233.125.246]) by fe3.cox-internet.com f018ea6efd6984189790b5f401fab223) with ESMTP id <20031002134600.YJYH636.fe3@nostrum.com>; Thu, 2 Oct 2003 08:46:00 -0500 Date: Thu, 2 Oct 2003 08:46:30 -0500 Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v552) To: Lucas Holt From: David J Ducshcher In-Reply-To: Message-Id: Content-Transfer-Encoding: 7bit X-Mailer: Apple Mail (2.552) cc: freebsd-questions@freebsd.org cc: Todd Stephens Subject: Re: FreeBSD vs. RedHat X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Oct 2003 13:46:03 -0000 On Thursday, October 2, 2003, at 07:42 AM, Lucas Holt wrote: > >> Let me give acknowledgment to Greg Lehey ahead of time for this as >> this >> bit that follows comes from _The Complete FreeBSD_. >> >> ".. by the mid-80s, there were four different versions of UNIX: the >> Research Version ... the Berkeley Software Distribution ... System V >> ... and XENIX, " >> >> Sorry for omitting parts, but the overall idea of the passage remains >> intact. >> >> I believe, and someone correct me here, that BSD was a modification of >> the /original/ UNIX code which existed prior to Sys V in 1983, >> indicating that BSD and Sys V are different branches from the same >> trunk. The history is rather confusing though, so I expect to be >> wrong >> on this. >> >> -- >> Todd Stephens >> > > You are right through the 80s. In the 90s, the System V code had to > be pulled from most of the kernel. The NetBSD and FreeBSD projects > started with the BSD 386 code, and had to redo their distro as a > result of a lawsuit to the BSD 4.4 lite code. That code had several > files removed as part of the lawsuit settlement. I'd guess that only > SCO products, Solaris, AIX, and (if you believe SCO) Linux 2.4 has > System V code in them now. Of course I mean solaris 2.x+, since 1.x > was based on BSD code. Here is nice simple picture that seems to explain the history of unix fairly well. :) http://www.levenez.com/unix/history.html DaveD