From owner-freebsd-current@FreeBSD.ORG Thu Oct 22 17:58:20 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 94954106566B; Thu, 22 Oct 2009 17:58:20 +0000 (UTC) (envelope-from xsappyx@gmail.com) Received: from mail-yx0-f171.google.com (mail-yx0-f171.google.com [209.85.210.171]) by mx1.freebsd.org (Postfix) with ESMTP id 335988FC17; Thu, 22 Oct 2009 17:58:19 +0000 (UTC) Received: by yxe1 with SMTP id 1so7150357yxe.3 for ; Thu, 22 Oct 2009 10:58:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=Jk+v9H94Fn+jhOiMFer6eyj0Se9MXabgoPnam7hKl5I=; b=DVGtfYlDeXyx9p99Lx1buUXnY4/P4KBT6gWL1TCDns9qLQoy52nAnLwWp6SSoJHa8k qf3+Btm4ejPe2tufK3ANHW2mCIMS4StpRfj1zl+uurI52fjS2xG7UVolzbl81CZdR2TF WOphqoGcJqQgzkpSI3fDs16arr2vVtaIkfs04= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=Ifq3QhnQViUV4+dSF4/Ul1lY0cvPrmR6XOtjOxhP19PsG1L9/VlLouXIIcr10aKlXA hVHDzv8gW9rO2hIM23WiXcw2WmnFWp6hPu6wIv+jbEuB/0tyVClhnItrDFbuLc0BJy2B 8WTOm85aQ3UpvpHN98CZSNUQ99OQ2KFDGlCyg= MIME-Version: 1.0 Received: by 10.239.162.129 with SMTP id l1mr96161hbd.214.1256232885841; Thu, 22 Oct 2009 10:34:45 -0700 (PDT) In-Reply-To: <4ADFB56B.9040607@ish.com.au> References: <4ADE995A.8080009@ish.com.au> <1256174188.2309.22.camel@balrog.2hip.net> <4ADFB56B.9040607@ish.com.au> Date: Thu, 22 Oct 2009 10:34:45 -0700 Message-ID: <8206ae960910221034r38184f17t582a10238d0ecb3b@mail.gmail.com> From: xSAPPYx To: Aristedes Maniatis Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: freebsd-current@freebsd.org, Jurgen Weber , Robert Noland Subject: Re: gpart, bsdlabel and fdisk X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Oct 2009 17:58:20 -0000 On Wed, Oct 21, 2009 at 6:29 PM, Aristedes Maniatis wrote: > On 22/10/09 12:16 PM, Robert Noland wrote: > I don't understand this in the gpart manual: > > =C2=A0 "The GEOM_PART_GPT option adds support for the GUID Partition Tabl= e (GPT) > found on Intel Itanium computers and Intel-based Macintosh computers." > > Why is GPT restricted to use on Macs and Itanium? As long as BIOS is able= to > load the boot sectors, shouldn't it work everywhere? Can you clarify this= a > little? As I understand it, Macs and Itanium were just the first adopters of EFI, the new boot method to take over the old school bios / mbr system. GPT is the disk partition part of EFI: http://en.wikipedia.org/wiki/GUID_Partition_Table We are in the transition period between the two, with gpt being the future. IIRC there is a 2TB limit for mbr partitioned disks... we will all be running gpt soon enough