From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1NNhM1-0007f1-Ai for mharc-grub-devel@gnu.org; Thu, 24 Dec 2009 01:39:21 -0500 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NNhLx-0007cV-Mp for grub-devel@gnu.org; Thu, 24 Dec 2009 01:39:17 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NNhLr-0007Y7-Ql for grub-devel@gnu.org; Thu, 24 Dec 2009 01:39:16 -0500 Received: from [199.232.76.173] (port=39272 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NNhLr-0007Xy-Ds for grub-devel@gnu.org; Thu, 24 Dec 2009 01:39:11 -0500 Received: from mail-yx0-f191.google.com ([209.85.210.191]:33402) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NNhLr-0006QJ-2q for grub-devel@gnu.org; Thu, 24 Dec 2009 01:39:11 -0500 Received: by yxe29 with SMTP id 29so21861213yxe.14 for ; Wed, 23 Dec 2009 22:39:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=rleiSt3nvnuRU7ZRfU5Kni2DOEK1ZmvfstQUJnSwmdM=; b=PuXkwjcu46GXrEqkRjpAr3mpgHL4qQ0u6nxNznr6sj9YjjeHCbY3VhhzBjIolPH7CL EFiTdLEzIXr+KpdF6914TZVHhY52eHhGb4MHv5fxThMssNjbUKnWtKYb5x82cvZ8rQ1f Qy5ljr3u1ls/hzj9/Lwejs/fIPmXpXPO/PV6E= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; b=w6G54dXy6hGa/jjPa6Ho85/RhrE/ZAcY7NXmp6sX/zCVWewm/tzUL9sHM4ZDDvKvJM L1p7Th9o697tOfSN6+eRFJmxzlkShETSyB3cm24T05B5f0kze/Y8ZFY5xfPhlX62iTT5 HrFgaaF+B1RzRXWfKvG+iOCBPr2MEvclXSdEo= Received: by 10.91.63.26 with SMTP id q26mr4330066agk.46.1261636750223; Wed, 23 Dec 2009 22:39:10 -0800 (PST) Received: from ?192.168.0.75? (cpe-66-69-97-231.satx.res.rr.com [66.69.97.231]) by mx.google.com with ESMTPS id 14sm4227820gxk.10.2009.12.23.22.39.08 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 23 Dec 2009 22:39:08 -0800 (PST) Message-ID: <4B330C8B.6000205@gmail.com> Date: Thu, 24 Dec 2009 00:39:07 -0600 From: Bruce Dubbs User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.16) Gecko/20080722 SeaMonkey/1.1.11 MIME-Version: 1.0 To: The development of GNU GRUB References: <20091222170208.19290@gmx.net> <4B31095D.1030409@gmail.com> <20091223230542.287510@gmx.net> <4B32BC89.6090501@gmail.com> <4B32FE07.6040208@gmail.com> <929CBB02-290A-4657-9E4D-9C8AEF1217A1@sun.com> In-Reply-To: <929CBB02-290A-4657-9E4D-9C8AEF1217A1@sun.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) Subject: Re: How to install grub on fakeraid (raid 0) which spans 2 TB? X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Dec 2009 06:39:18 -0000 Seth Goldberg wrote: > > > On Dec 23, 2009, at 9:37 PM, Bruce Dubbs wrote: > >> Seth Goldberg wrote: >> >>> While the BIOS call supports 48-bit LBA, the MBR partition table is >>> limited to 32-bit LBA addresses for partition dimensions. If you >>> partition the disk with a GPT partition table, those limitations are >>> removed, but GPT-partitioned disks aren't supported by XP (at least). >> >> Excellent point, but doesn't that mean a BIOS that supports LBA (which >> as been around for many years) will support 2^18 TB? I think my >> arithmetic is correct, but please correct me if I misunderstand. >> > > Assuming a 512-byte sector size, the total number of bytes is 2^9 * > 2^48 = 2^57 = 2^27 TB. Hi Seth, I thought you just said the usual partition table only supported 32 bits: 2^9 * 2^32 = 2^41 bytes or 2 TiB, give or take a byte. :) 1K = 2^10 1M = 2^20 1G = 2^30 1T = 2^40 I think 48 bits gives 2^17 TiB or 128 Pib (Petabytes). -- Bruce