From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Niels de Carpentier" Subject: Re: revert to static snapshot on reboot Date: Mon, 9 Jan 2012 16:21:31 +0100 Message-ID: References: <20120109064304.18411.qmail@otpproductions.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: linux-btrfs@vger.kernel.org To: btrfs@spiritvideo.com Return-path: In-Reply-To: <20120109064304.18411.qmail@otpproductions.com> List-ID: > The plan that occurs to me is to make a snapshot of the system in the > state that I want to always boot. Then, I would rewrite the init > script in the initrd to (a) delete any old tmp copy of the snapshot; > (b) copy the static snapshot to a tmp copy; (c) mount the tmp copy. > > That's a little harder than I was hoping to work -- is there an easier > way to get this functionality? I would just create a filesystem with the static content, and on boot do: mount fs delete snapshots create snapshot unmount fs and mount snapshot. I'm not sure if you can snapshot a snapshot, otherwise you could start with a snapshot as well. (Just be sure not to delete it) Niels