From owner-freebsd-questions Wed Feb 26 12:49:34 2003 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 B2D8837B401 for ; Wed, 26 Feb 2003 12:49:32 -0800 (PST) Received: from falcon.midgard.homeip.net (h76n3fls20o913.telia.com [213.67.148.76]) by mx1.FreeBSD.org (Postfix) with SMTP id 5612B43F85 for ; Wed, 26 Feb 2003 12:49:30 -0800 (PST) (envelope-from ertr1013@student.uu.se) Received: (qmail 91794 invoked by uid 1001); 26 Feb 2003 20:49:28 -0000 Date: Wed, 26 Feb 2003 21:49:28 +0100 From: Erik Trulsson To: Mike Meyer Cc: Konrad Heuer , Brian Henning , freebsd Subject: Re: rfd0 fd0 Message-ID: <20030226204928.GA91744@falcon.midgard.homeip.net> Mail-Followup-To: Mike Meyer , Konrad Heuer , Brian Henning , freebsd References: <15963.37824.912975.511372@guru.mired.org> <20030226133214.F29371-100000@gwdu60.gwdg.de> <15964.61397.904986.726598@guru.mired.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <15964.61397.904986.726598@guru.mired.org> User-Agent: Mutt/1.5.3i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wed, Feb 26, 2003 at 10:48:21AM -0600, Mike Meyer wrote: > In <20030226133214.F29371-100000@gwdu60.gwdg.de>, Konrad Heuer typed: > > On Tue, 25 Feb 2003, Mike Meyer wrote: > > > In <20030225083805.S29371-100000@gwdu60.gwdg.de>, Konrad Heuer typed: > > > > On Mon, 24 Feb 2003, Brian Henning wrote: > > > > > what is the difference between these two devices? > > > > fd0 ist a block-oriented device, data are cached in the buffer cache; > > > > rfd0 is a byte-oriented raw device; data are always read from or > > > > immediately written to the device. > > > This is out-of-date information. Both fd0 and rfd0 are raw character > > > devices these days. The old names were kept around for backwards > > > compatability, but there is no difference between them. > > What does it mean - "these days"? When did the change occur? > > I'm not sure. 4.6 sounds right, but might not be. To get exact > details, check the CVS logs. I'd check /dev/MAKEDEV. A bit earlier than that. The change occured in Nov/Dec 1999, a couple of months before the RELENG_4 branch was created, so all of the 4.x releases have been without block devices. -- Erik Trulsson ertr1013@student.uu.se To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message