From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763483AbZBYXeq (ORCPT ); Wed, 25 Feb 2009 18:34:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762550AbZBYXee (ORCPT ); Wed, 25 Feb 2009 18:34:34 -0500 Received: from terminus.zytor.com ([198.137.202.10]:47218 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762542AbZBYXed (ORCPT ); Wed, 25 Feb 2009 18:34:33 -0500 Message-ID: <49A5D55A.9080402@zytor.com> Date: Wed, 25 Feb 2009 15:33:46 -0800 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 To: "Martin K. Petersen" CC: Matthew Wilcox , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, sandeen@redhat.com Subject: Re: ATA support for 4k sector size References: <1235600698-6446-1-git-send-email-matthew@wil.cx> <49A5CBF7.9000501@zytor.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Martin K. Petersen wrote: > > I'll defer to people like yourself for how this needs to work wrt. boot > loaders and creating partition tables. I'm CC:ing Eric Sandeen because > he's also looking at this... > I wish it was left to people like myself. Realistically when it comes to disks with 4096-byte logical sectors it going to matter how the firmware chooses to expose it. Most likely, the universe will explode at this time, since very few bootloaders can deal with a sector size other than 512 bytes, and virtually every partition table format contains a sector size dependency, which also means you'll break any mechanical imaging solution. It's going to hurt :( -hpa