Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753803Ab0GXXWx (ORCPT ); Sat, 24 Jul 2010 19:22:53 -0400 Received: from out1.smtp.messagingengine.com ([66.111.4.25]:37412 "EHLO out1.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751408Ab0GXXWv (ORCPT ); Sat, 24 Jul 2010 19:22:51 -0400 X-Sasl-enc: zlALlkp7fIOf4sayk/n2yyv5HK2DvnEJTmzUFUDkZq6t 1280013770 Date: Sat, 24 Jul 2010 20:22:47 -0300 From: Henrique de Moraes Holschuh To: Greg Freemyer Cc: Yuhong Bao , tj@kernel.org, jeff@garzik.org, ben.collins@ubuntu.com, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: support for drives larger than 2TiB Message-ID: <20100724232247.GA2129@khazad-dum.debian.net> References: <4C4AB952.9030705@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-GPG-Fingerprint: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1086 Lines: 28 On Sat, 24 Jul 2010, Greg Freemyer wrote: > Secondly, if you look at the table on the right of > http://en.wikipedia.org/wiki/Master_boot_record#Disk_partitioning you > see that the starting sector of a partition is defined with a 32-bit > value. > > ie. 2TB with 512 byte sectors. > > The normal solution is to move to a GPT which requires EFI if you want > to boot from it. Can't one have a GPT with a guard boot sector which can read the real partition table? I think Tejun must mean some big problem at the BIOS APIs required for the bootloader. Tejun, what exactly croaks at the 2TB boundary (with 512KiB sectors)? -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/