From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felix Miata Subject: Re: [RFC] Separating out libata out of SCSI (finally) Date: Tue, 24 Jun 2008 12:27:36 -0400 Message-ID: <48612078.3000905@ij.net> References: <485B2CC6.6070201@kernel.org> <1213993737.3443.35.camel@localhost.localdomain> <485C31FE.8050408@garzik.org> <87f94c370806231404t13586777x7f7bee24ebe25ffc@mail.gmail.com> <1214255460.3310.27.camel@localhost.localdomain> <4860B099.2030305@panasas.com> <1214318550.3299.7.camel@localhost.localdomain> <48610BDC.6090101@kernel.org> <486115DE.20805@ij.net> <4861176E.8040008@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from pop-knobcone.atl.sa.earthlink.net ([207.69.195.64]:57152 "EHLO pop-knobcone.atl.sa.earthlink.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751293AbYFXQ1U (ORCPT ); Tue, 24 Jun 2008 12:27:20 -0400 Received: from user-142grnk.cable.mindspring.com ([72.40.110.244] helo=[192.168.0.51]) by pop-knobcone.atl.sa.earthlink.net with esmtp (Exim 3.36 #1) id 1KBBMV-0005ww-00 for linux-ide@vger.kernel.org; Tue, 24 Jun 2008 12:27:19 -0400 In-Reply-To: <4861176E.8040008@kernel.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org On 2008/06/25 00:49 (GMT+0900) Tejun Heo apparently typed: > Felix Miata wrote: >> On 2008/06/24 23:59 (GMT+0900) Tejun Heo apparently typed: >>> I'm currently working on a scheme where partitions above gd->minors get >>> allocated dynamic MAJ:MIN. It looks like it can be done mostly in block >>> layer proper. The only problem I can foresee is not being able to >>> specify MAJ:MIN as root device but that shouldn't be a major problem. >>> I'll report back when I make more progress. >> Please correct me if I'm wrong, but on the following, would it not >> be a major problem booting, without deleting any existing or moving >> any existing, with only a few more upgrade cycles to replace what's >> there installed now with current and near future distros? > I'm not sure what you mean. If you switch to libata now, you'll only be > able to see 15 partitions, so, yes, you'll have problem updating to a Well, on the Fedora 9 on hda9 that is already the case, as it provided no option to not use libata. ;-) > distro which uses libata now and in near future. If the dynamic > partition thing goes well, hopefully the next major distro releases work > fine. I responded as I did due to your statement "only problem I can foresee is not being able to specify MAJ:MIN as root device", hoping to see some elaboration on the statement from you. I read your statement as "don't expect to be able to use any partition >15 as a root device". So, in the past root=3:17 would have been a valid replacement for root =/dev/hda17? If so, sorry for the noise, as I'd never seen that type of usage, and certainly would not miss it. -- "Where were you when I laid the earth's foundation?" Matthew 7:12 NIV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/