From owner-freebsd-stable@FreeBSD.ORG Fri May 6 07:20:10 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3259016A4CE for ; Fri, 6 May 2005 07:20:10 +0000 (GMT) Received: from anduin.net (anduin.net [212.12.46.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id E2B3943D5D for ; Fri, 6 May 2005 07:20:09 +0000 (GMT) (envelope-from ltning@anduin.net) Received: from eirik.unicore.no ([213.225.74.166] helo=[10.0.16.10]) by anduin.net with esmtpa (Exim 4.50 (FreeBSD)) id 1DTx81-000BQG-8D; Fri, 06 May 2005 09:20:05 +0200 User-Agent: Microsoft-Entourage/11.1.0.040913 Date: Fri, 06 May 2005 09:19:59 +0200 From: Eirik =?ISO-8859-1?B?2A==?=verby To: Danny Braniss , Message-ID: In-Reply-To: Mime-version: 1.0 Content-type: text/plain; charset="ISO-8859-1" Content-transfer-encoding: quoted-printable cc: "stable@freebsd.org" Subject: Re: Current status of nullfs and/or unionfs? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 May 2005 07:20:10 -0000 On 06-05-05 08:18, "Danny Braniss" wrote: >> Eirik =D8verby writes: >>> [...] >>> What can I expect to see when trying nullfs and/or unionfs today? Has >>> anything changed? Do I have even a remote chance of making it work - an= d if >>> it doesn't work, what are my chances of anyone having time or energy to= look >>> into it? I'm an admin only, no coder, otherwise I'd be happy to look in= to it >>> myself. >>=20 >> I'm using unionfs to mount a copy of my ports tree into a jail on a >> fairly currently patched 5.3 system. It works beautifully except that >> it sometimes can't be unmounted as the machine shuts down, leading to >> an fsck. >>=20 >> I've been trying to characterize it. Seems like I can mount it, start >> a jail, stop the jail, and unmount it just fine. However if I do >> anything in the jail's ports tree, then it won't unmount. Last >> experiment I did was to log into the jail and do a couple of 'syncs', >> then log out, shut the jail down and unmount it. That worked that one >> time. >>=20 >> Not enough to file a bug yet, but the anecdote might be useful. >=20 >=20 > we use unionfs with our diskless, mounting the read-only root via nfs, th= en > union /etc with a memory file system, the per host files (rc.conf, fstab = ...) > get copied to it, so that after a reboot no need to fsck anything. works > like a charm! Interesting approach. Is this with 4.x or 5.x? How do you union-mount /etc (mount command/fstab entry)? /Eirik >=20 > a happy user of unionfs, > danny >=20 >=20 >=20