From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Dilger Subject: Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3 Date: Fri, 9 Jun 2006 22:29:55 -0600 Message-ID: <20060610042954.GX5964@schatzie.adilger.int> References: <4489874C.1020108@garzik.org> <44899113.3070509@garzik.org> <170fa0d20606090921x71719ad3m7f9387ba15413b8f@mail.gmail.com> <200606092252.k59Mqc2Q018613@turing-police.cc.vt.edu> <20060609232108.GM5964@schatzie.adilger.int> <200606100121.k5A1LDjR004186@turing-police.cc.vt.edu> <20060610020900.GU5964@schatzie.adilger.int> <1149907555.2340.7.camel@entropy> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Valdis.Kletnieks@vt.edu, Alex Tomas , Jeff Garzik , ext2-devel , linux-kernel@vger.kernel.org, Christoph Hellwig , Mingming Cao , linux-fsdevel@vger.kernel.org Return-path: Received: from mail.clusterfs.com ([206.168.112.78]:29077 "EHLO mail.clusterfs.com") by vger.kernel.org with ESMTP id S932346AbWFJE3t (ORCPT ); Sat, 10 Jun 2006 00:29:49 -0400 To: Nicholas Miell Content-Disposition: inline In-Reply-To: <1149907555.2340.7.camel@entropy> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Jun 09, 2006 19:45 -0700, Nicholas Miell wrote: > I think changing all of this mess to: > > [root@localhost root]# tune2fs -O extents /dev/whatever > WARNING: Enabling extents on /dev/whatever will make this filesystem > unreadable in Linux kernels versions before 2.6.19! > Are you sure you want to do this? > > [root@localhost root]# tune2fs -O ^extents /dev/whatever > WARNING: Disabling extents on /dev/whatever requires you to run e2fsck > on this filesystem before it can be used again! > Are you sure you want to do this? > > might assuage many of the fears presented in this thread. If that were true, then I'd be happy to make this the barrier to entry. Sadly, I don't think that is the only issue, but I'm happy to be shown to be wrong. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.