From owner-freebsd-stable Thu Mar 6 4:32: 0 2003 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 63E7437B401 for ; Thu, 6 Mar 2003 04:31:59 -0800 (PST) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id EB39843F75 for ; Thu, 6 Mar 2003 04:31:57 -0800 (PST) (envelope-from marck@rinet.ru) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.12.8/8.12.6) with ESMTP id h26CVq63008256 for ; Thu, 6 Mar 2003 15:31:53 +0300 (MSK) (envelope-from marck@rinet.ru) Date: Thu, 6 Mar 2003 14:41:59 +0300 (MSK) From: Dmitry Morozovsky To: James Raftery Subject: Re: jails update In-Reply-To: <20030306111414.GB95910@bender.kerna.ie> Message-ID: <20030306143029.U43664@woozle.rinet.ru> References: <20030305135652.GA83413@ei.bzerk.org> <020c01c2e340$ee8f5c60$19fd2fd8@westbend.net> <20030306140038.M43664@woozle.rinet.ru> <20030306111414.GB95910@bender.kerna.ie> X-NCC-RegID: ru.rinet MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, 6 Mar 2003, James Raftery wrote: JR> > We avoid this (and the whole need to update multiple jails) by JR> > installing to dedicated partition and the do multiple read-only null JR> > mounts, so each jail has perfectly equal read-only /usr (with symlinks JR> > outside to /home, /local, etc) JR> JR> The rather blunt warning in the BUGS sections of the mount_null man JR> page[0] had put me off using it. How stable is nullfs these days? JR> JR> JR> [0] ``... NOT YET FULLY SUPPORTED (READ: IT DOESN'T WORK) ...'' I've heard about deadlocks and other bad things with read-write nullfs-es; however, read-only null mounts works flawlessly (at least for us, and we do not stress our system like scrappy@hub.org ;-))) Sincerely, D.Marck [DM5020, DM268-RIPE, DM3-RIPN] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message