From owner-freebsd-hackers Mon Feb 1 21:03:37 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA09860 for freebsd-hackers-outgoing; Mon, 1 Feb 1999 21:03:37 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from wall.polstra.com (rtrwan160.accessone.com [206.213.115.74]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id VAA09853 for ; Mon, 1 Feb 1999 21:03:34 -0800 (PST) (envelope-from jdp@polstra.com) Received: from vashon.polstra.com (vashon.polstra.com [206.213.73.13]) by wall.polstra.com (8.9.1/8.9.1) with ESMTP id VAA08098; Mon, 1 Feb 1999 21:03:30 -0800 (PST) (envelope-from jdp@polstra.com) Received: (from jdp@localhost) by vashon.polstra.com (8.9.1/8.9.1) id VAA13788; Mon, 1 Feb 1999 21:03:30 -0800 (PST) (envelope-from jdp@polstra.com) Message-ID: X-Mailer: XFMail 1.3 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Mon, 01 Feb 1999 21:03:30 -0800 (PST) Organization: Polstra & Co., Inc. From: John Polstra To: spork Subject: Re: 'cpdup' program, and question Cc: hackers@FreeBSD.ORG Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG spork wrote: > On Thu, 28 Jan 1999, John Polstra wrote: > >> At least one commercial company employs CVSup to do field upgrades >> of their FreeBSD-based product. In that application, CVSup upgrades >> the entire root and /usr filesystems. > > Have you seen any example-laden FAQs on something like this? You've > piqued my curiousity... I don't know the full details of how they've done it. But my understanding is that they've simply made one or two big collections representing the filesystems. CVSup takes great pains to update all files atomically, so it normally wouldn't cause problems to upgrade a running system. Obviously you have to carefully think through all the "what ifs", and be prepared to recover from them. John --- John Polstra jdp@polstra.com John D. Polstra & Co., Inc. Seattle, Washington USA "Nobody ever went broke underestimating the taste of the American public." -- H. L. Mencken To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message