From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 7 Jun 2000 01:09:26 +0100 (IST) From: Paul Jakma Subject: Re: [linux-lvm] LVM 0.8final for 2.2.15/2.2.16? In-Reply-To: <20000607004618.A13524@gruyere.muc.suse.de> Message-ID: MIME-Version: 1.0 Sender: owner-linux-lvm Errors-To: owner-linux-lvm List-Id: Content-Type: TEXT/PLAIN; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andi Kleen Cc: Linux LVM list incidentally, snapshots /seem/ to work fine here on live fs's with 2.4.0-test1-ac7. On Wed, 7 Jun 2000, Andi Kleen wrote: > On Tue, Jun 06, 2000 at 11:30:48PM +0100, Paul Jakma wrote: > > > This means you effectively can only take > > > snapshots from unmounted file systems. > > > > > > > eh? but a snapshot is not ever meant to be used directly as an > > alternate filesystem, so there's no point running fsck on it.. ?? > > You cannot safely access a unclean file system without replaying the log > (when it is journaled) or running fsck (when it is not journaled). The > file system meta data may not be consistent: files may contain bogus > blocks, directories may point to nowhere, inodes may be outdated etc. > In short, without write access you cannot safely read it, except > when it was cleanly unmounted > > > -Andi > > -- Paul Jakma paul@clubi.ie PGP5 key: http://www.clubi.ie/jakma/publickey.txt ------------------------------------------- Fortune: The trouble with the rat-race is that even if you win, you're still a rat. -- Lily Tomlin