From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 9844 invoked from network); 25 Jun 2020 19:32:05 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 25 Jun 2020 19:32:05 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 363729C29A; Fri, 26 Jun 2020 05:32:00 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 695109C243; Fri, 26 Jun 2020 05:31:34 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id EC9499C243; Fri, 26 Jun 2020 05:31:31 +1000 (AEST) Received: from mercury.lcs.mit.edu (mercury.lcs.mit.edu [18.26.0.122]) by minnie.tuhs.org (Postfix) with ESMTPS id 7FED29C226 for ; Fri, 26 Jun 2020 05:31:31 +1000 (AEST) Received: by mercury.lcs.mit.edu (Postfix, from userid 11178) id 9690E18C0AB; Thu, 25 Jun 2020 15:31:30 -0400 (EDT) To: tuhs@tuhs.org Message-Id: <20200625193130.9690E18C0AB@mercury.lcs.mit.edu> Date: Thu, 25 Jun 2020 15:31:30 -0400 (EDT) From: jnc@mercury.lcs.mit.edu (Noel Chiappa) Subject: Re: [TUHS] VFS prior to 1984 X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jnc@mercury.lcs.mit.edu Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > From: "Greg A. Woods" > as Organick said in his 1972 book A word of warning: i) Organick describes Multics as it was planned, not as it was actually implemented; and ii) then it changed considerably during its service life. Examples of each: i) there was one linkage segment per processs, not per segment (linkage info was copied across into the shared linkage segment when a segment was dynamically added to a process' address space); ii) the New Storage System. The basic concepts (single level store, dynamic linking etc) are correct in Organick, but be wary of anything past that. Not his fault, of course; things just changed. > As far as I can remember Multics didn't really have the concept of a > "mount point". In the original design, no. In 1973-75, with the New Storage System: https://multicians.org/nss.html mountable volumes were added (see MTB 229, "Use of Demountable Logical Volumes", linked from the page above). It was released to customers in June, 1976. Noel