From owner-freebsd-questions Tue Oct 19 0: 8:46 1999 Delivered-To: freebsd-questions@freebsd.org Received: from orion.ac.hmc.edu (Orion.AC.HMC.Edu [134.173.32.20]) by hub.freebsd.org (Postfix) with ESMTP id 3ED3816076 for ; Tue, 19 Oct 1999 00:08:44 -0700 (PDT) (envelope-from brdavis@orion.ac.hmc.edu) Received: (from brdavis@localhost) by orion.ac.hmc.edu (8.8.8/8.8.8) id AAA17844; Tue, 19 Oct 1999 00:08:24 -0700 (PDT) Date: Tue, 19 Oct 1999 00:08:24 -0700 From: Brooks Davis To: "Ronald F. Guilmette" Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Stupid file system tricks. Message-ID: <19991019000824.A2650@orion.ac.hmc.edu> References: <5547.940301936@monkeys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre4i In-Reply-To: <5547.940301936@monkeys.com>; from rfg@monkeys.com on Mon, Oct 18, 1999 at 07:58:56PM -0700 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, Oct 18, 1999 at 07:58:56PM -0700, Ronald F. Guilmette wrote: > > Dumb question #1: > > Why can't I mount a single physical (ufs) file system in two different > (logical) places at once? I don't have a good answer for that. I believe it would lead to nasty consistency problems because files would be represented twice. > Dumb question #2: > > Given that I can't mount a (ufs) filesystem in two different places at > once (perhaps because that would create some problem with synchronizing > any writes to the filesystem and/or some problems with keeping in-core > buffers always synched with what's on disk), why can't I at least mount > a given filesystem *READ ONLY* in two different places at once? You might be able to use mount_null(8) to accomplish the desired effect. -- Brooks -- "Those who desire to give up freedom in order to gain security, will not have, nor do they deserve, either one" --Thomas Jefferson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message