From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755483AbXGGVRq (ORCPT ); Sat, 7 Jul 2007 17:17:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751966AbXGGVRj (ORCPT ); Sat, 7 Jul 2007 17:17:39 -0400 Received: from terminus.zytor.com ([192.83.249.54]:35510 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751955AbXGGVRi (ORCPT ); Sat, 7 Jul 2007 17:17:38 -0400 Message-ID: <469002EB.7030902@zytor.com> Date: Sat, 07 Jul 2007 14:17:31 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.0 (X11/20070419) MIME-Version: 1.0 To: Jan Engelhardt CC: Bodo Eggert <7eggert@gmx.de>, linux-kernel@vger.kernel.org Subject: Re: [RFC][Patch] Allow not mounting a root fs References: <468DA42D.7050309@zytor.com> <468FFE18.4000500@zytor.com> In-Reply-To: X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jan Engelhardt wrote: > On Jul 7 2007 13:56, H. Peter Anvin wrote: >> Jan Engelhardt wrote: >>> On Jul 5 2007 19:08, H. Peter Anvin wrote: >>>>> BTW: Is it possible to mount a tmpfs on / before extracting the cpio? >>>> Not in the stock kernel. There have been some patches floating around >>>> for that, I think. >>> What would it buy? rootfs is a tmpfs, is not it? >> No, rootfs is ramfs. > > Thanks for clarifying. Well, why is it a ramfs, and not tmpfs? > (I think I know the difference, but the question stands. > A system without any swap somewhat equals a ramfs, or?) It gets initialized very early, and a lot of the setup needed for tmpfs to work isn't ready yet. -hpa