From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750756AbWG0Uik (ORCPT ); Thu, 27 Jul 2006 16:38:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750760AbWG0Uik (ORCPT ); Thu, 27 Jul 2006 16:38:40 -0400 Received: from terminus.zytor.com ([192.83.249.54]:35502 "EHLO terminus.zytor.com") by vger.kernel.org with ESMTP id S1750756AbWG0Uij (ORCPT ); Thu, 27 Jul 2006 16:38:39 -0400 Message-ID: <44C9244B.1020708@zytor.com> Date: Thu, 27 Jul 2006 13:38:35 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 1.5.0.4 (X11/20060614) MIME-Version: 1.0 To: Al Boldi CC: linux-kernel@vger.kernel.org Subject: Re: patch for Documentation/initrd.txt? References: <200607272026.57695.a1426z@gawab.com> <44C90B6F.5070000@zytor.com> <200607272335.36819.a1426z@gawab.com> In-Reply-To: <200607272335.36819.a1426z@gawab.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Al Boldi wrote: > H. Peter Anvin wrote: >> Al Boldi wrote: >>> Thanks for your very useful docPatch! >>> >>> OT, but your docPatch made me think of another way to init the kernel; >>> via tmpfs, i.e. initTmpFS. >>> >>> Can anybody see how that could be useful? >> Useful, yes, but this has turned out to be fairly complex. > > Sounds like somebody tried this before? > Several people, yes. >> tmpfs needs >> a *LOT* more of the system to be fully operational than ramfs, and the >> rootfs is initialized very early on, since one of its purposes is to >> eliminate special cases. > > So would it be possible to remap rootfs from ramfs to tmpfs, once tmpfs is > initialized, without actually doing another cpio? That sounds nasty. -hpa