Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 27 Jul 2001 05:41:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 27 Jul 2001 05:41:00 -0400 Received: from [195.157.147.30] ([195.157.147.30]:65292 "HELO pookie.dev.sportingbet.com") by vger.kernel.org with SMTP id ; Fri, 27 Jul 2001 05:40:50 -0400 Date: Fri, 27 Jul 2001 10:32:21 +0100 From: Sean Hunter To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: Strange remount behaviour with ext3-2.4-0.9.4 Message-ID: <20010727103221.F18669@dev.sportingbet.com> Mail-Followup-To: Sean Hunter , Andrew Morton , linux-kernel@vger.kernel.org In-Reply-To: <3B5FC7FB.D5AF0932@zip.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3B5FC7FB.D5AF0932@zip.com.au>; from akpm@zip.com.au on Thu, Jul 26, 2001 at 05:34:19PM +1000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Original-Recipient: rfc822;linux-kernel-outgoing Following the announcement on lkml, I have started using ext3 on one of my servers. Since the server in question is a farily security-sensitive box, my /usr partition is mounted read only except when I remount rw to install packages. I converted this partition to run ext3 with the mount options "nodev,ro,data=writeback,defaults" figuring that when I need to install new packages etc, that I could just mount rw as before and that metadata-only journalling would be ok for this partition as it really sees very little write activity. When I try to remount it r/w I get a log message saying: Jul 27 09:54:29 henry kernel: EXT3-fs: cannot change data mode on remount ...even if I give the full mount option list with the remount instruction. I can, however, remount it as ext2 read-write, but when I try to remount as ext3 (even read only) I get the same problem. Wierdly, "mount" lists it as being still an ext3 partition even though it has been remounted as ext2. I can't umount /usr because kjournald is currently listed as using the partition. The box in question is more-or-less RedHat 7.1, with ext3-2.4-0.9.4, kernel 2.4.7 and with the following relevant package versions: mount-2.11g-4 util-linux-2.11f-3 e2fsprogs-1.22-2 ...all from rawhide rpms. Sean - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/