From owner-freebsd-hackers Tue Jan 7 13:40:15 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 5971E37B401 for ; Tue, 7 Jan 2003 13:40:14 -0800 (PST) Received: from isber.ucsb.edu (research.isber.ucsb.edu [128.111.147.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6A3BC43ED1 for ; Tue, 7 Jan 2003 13:40:10 -0800 (PST) (envelope-from randall@isber.ucsb.edu) Received: from localhost ([127.0.0.1] helo=research.isber.ucsb.edu) by isber.ucsb.edu with esmtp (Exim 3.36 #2) id 18W1S9-0009a0-00; Tue, 07 Jan 2003 13:40:05 -0800 Date: Tue, 7 Jan 2003 13:40:05 -0800 (PST) From: randall ehren To: Paul Armstrong Cc: Subject: Re: freebsd running on a cdrom In-Reply-To: <20030107201739.GF11745@vanilla.office.cyber.com.au> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Scanner: exiscan *18W1S9-0009a0-00*iCIxaheRHPY* (ISBER - Institute for Social, Behavioral, and Economic Research) 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 06:06:26AM -0700, M. Warner Losh wrote: > > : 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 ;-) > > > > Read cycles is very huge, like 10^10 or so. The CF parts can be made > > bootable, so not a problem. from what i have collected, you can read as much as you want. writing is what's limited, and for newer cards it's like 10^7... > The other thing of note is that the CD-ROM is often used because it's > read-only. Is there a way to make the CF read-only? besides mounting them read-only from /etc/fstab and setting the kernel security level as to not allow the use of mount -uw? -randall -- :// randall s. ehren :// voice 805.893.5632 :// systems administrator :// isber|survey|avss.ucsb.edu :// institute for social, behavioral, and economic research To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message