From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268670AbUJPLJw (ORCPT ); Sat, 16 Oct 2004 07:09:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268697AbUJPLJw (ORCPT ); Sat, 16 Oct 2004 07:09:52 -0400 Received: from phoenix.infradead.org ([81.187.226.98]:4103 "EHLO phoenix.infradead.org") by vger.kernel.org with ESMTP id S268670AbUJPLJt (ORCPT ); Sat, 16 Oct 2004 07:09:49 -0400 Date: Sat, 16 Oct 2004 12:09:39 +0100 From: Christoph Hellwig To: Pete Zaitcev Cc: schwidefsky@de.ibm.com, viro@parcelfarce.linux.theplanet.co.uk, linux-kernel@vger.kernel.org Subject: Re: Patch to add RAID autostart to IBM partitions Message-ID: <20041016110939.GB30336@infradead.org> Mail-Followup-To: Christoph Hellwig , Pete Zaitcev , schwidefsky@de.ibm.com, viro@parcelfarce.linux.theplanet.co.uk, linux-kernel@vger.kernel.org References: <20041015224822.7d980a9e@lembas.zaitcev.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041015224822.7d980a9e@lembas.zaitcev.lan> User-Agent: Mutt/1.4.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by phoenix.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 15, 2004 at 10:48:22PM -0700, Pete Zaitcev wrote: > Hi, guys: > > This is an implementation of essentially the same mechanism which exists > in msdos.c and sun.c. It is needed when initrd tries to mount a root > on a RAID. One might ask, why the heck initrd cannot do it without a > kernel help. The answer is in the contrived API of the MD driver: there > is no way to ask "assemble md0"; applications must list components. > Anyway, if msdos.c does it, surely ibm.c ought to do it as well. We had this for a few partition types (and full block devices) already and it's been vetoed. Use mdadm from initrd/initramfs instead.