From owner-freebsd-hackers Sun Jan 5 3:21:55 2003 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7446237B405 for ; Sun, 5 Jan 2003 03:21:54 -0800 (PST) Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by mx1.FreeBSD.org (Postfix) with ESMTP id D255D43ED1 for ; Sun, 5 Jan 2003 03:21:49 -0800 (PST) (envelope-from wkb@freebie.xs4all.nl) Received: from freebie.xs4all.nl (localhost [127.0.0.1]) by freebie.xs4all.nl (8.12.6/8.12.6) with ESMTP id h05BLkUe043569; Sun, 5 Jan 2003 12:21:46 +0100 (CET) (envelope-from wkb@freebie.xs4all.nl) Received: (from wkb@localhost) by freebie.xs4all.nl (8.12.6/8.12.6/Submit) id h05BLkHK043564; Sun, 5 Jan 2003 12:21:46 +0100 (CET) Date: Sun, 5 Jan 2003 12:21:46 +0100 From: Wilko Bulte To: Dmitry Morozovsky Cc: "M. Warner Losh" , freebsd-hackers@FreeBSD.ORG Subject: Re: freebsd running on a cdrom Message-ID: <20030105122146.C43208@freebie.xs4all.nl> References: <20030102220350.5971.qmail@web41013.mail.yahoo.com> <20030105001014.GA76756@cs.huji.ac.il> <20030105.001255.53237870.imp@bsdimp.com> <20030105131030.X264@woozle.rinet.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20030105131030.X264@woozle.rinet.ru>; from marck@rinet.ru on Sun, Jan 05, 2003 at 01:13:33PM +0300 X-OS: FreeBSD 4.7-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sun, Jan 05, 2003 at 01:13:33PM +0300, Dmitry Morozovsky wrote: > On Sun, 5 Jan 2003, M. Warner Losh wrote: > > MWL> : CD-ROM is not what I would call a reliable media. May I suggest > MWL> : booting from the network (PXE) or booting from a hard disk and > MWL> : mounting the partitions read-only? > MWL> > MWL> It is usually the case that solid-state media, properly configured, is > MWL> more reliable. CF cards have a TrueIDE mode that allows them to be > MWL> accessed as a disk on the IDE bus. Timing Solutions uses this > MWL> technology in all its embedded systems and we've noticed a huge > MWL> reduction in RMAs from the previous generation of systems with IDE > MWL> hard disks in them. > MWL> > MWL> I'd suspect that cdrom drives will break more often than hard disks in > MWL> harsh environments. > > Well, while I'd certainly agree with you regarding reliability (BTW, how many > _read_ cycles do contemporary flashdisks support?), there is at least one major > question: where to boot from? especially in the case of standalone > moving-parts-free router ;-) You can boot from CompactFlash cards, they behave like IDE drives. -- | / o / /_ _ wilko@FreeBSD.org |/|/ / / /( (_) Bulte To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message