From owner-freebsd-stable@FreeBSD.ORG Mon Feb 20 05:51:51 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DE27B106564A; Mon, 20 Feb 2012 05:51:51 +0000 (UTC) (envelope-from kob6558@gmail.com) Received: from mail-ww0-f42.google.com (mail-ww0-f42.google.com [74.125.82.42]) by mx1.freebsd.org (Postfix) with ESMTP id 44F938FC1A; Mon, 20 Feb 2012 05:51:50 +0000 (UTC) Received: by wgbgn7 with SMTP id gn7so2827593wgb.1 for ; Sun, 19 Feb 2012 21:51:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=LetQNojZsqSO1pp+bHH1MJUC6BD9dXXsyntoNxosW+U=; b=TkUZcI+eQQlrbaSKrxZEYpPg1Ue3TNiRa6aKkQaFx2nmDpwpbjl2xFuVAtrE/hlMCD 4qMGxwU0NpyscAw1wawpZCBuERMxJy+5DO8Uzm/Kh2VK144cd4h6lmSLoJlBV9d28k03 9IPfRReSmTFKduJ+1Jh1bXchDK6tUTAIoDtSw= MIME-Version: 1.0 Received: by 10.180.92.229 with SMTP id cp5mr11755216wib.8.1329717110084; Sun, 19 Feb 2012 21:51:50 -0800 (PST) Received: by 10.223.158.143 with HTTP; Sun, 19 Feb 2012 21:51:49 -0800 (PST) In-Reply-To: References: <20120217.160430.406937514120319292.hrs@allbsd.org> <4F3E3000.9000206@FreeBSD.org> <20120217.232843.2212672671663755444.hrs@allbsd.org> <4F3EC8DD.6040500@FreeBSD.org> Date: Sun, 19 Feb 2012 21:51:49 -0800 Message-ID: From: Kevin Oberman To: Freddie Cash Content-Type: text/plain; charset=ISO-8859-1 Cc: wblock@wonkity.com, freebsd-stable@freebsd.org, 000.fbsd@quip.cz, Andriy Gapon , mandrews@bit0.com, freebsd@jdc.parodius.com Subject: Re: New BSD Installer X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Feb 2012 05:51:51 -0000 On Sat, Feb 18, 2012 at 11:09 PM, Freddie Cash wrote: > If you're mirroring the disk with gmirror, how are you dual-booting the > disk? > > This discussion is about using gmirror to mirror two entire disks, and then > use GPT to partition the mirror device. > > Dual-booting has no bearing on that, as gmirror is a FreeBSD-only > technology. Yes, this discussion is about mirroring and that is only applicable to FreeBSD (as is GEOM, itself), but a full disk geom will use the last block in the disk and GPT does not allow this. If a disk is geomified for any reason and is a dual-boot disk (and I'll admit I can't think of any case where this would make be done today), the compatibility of GEOM and GPT will lead to problems that will get increasingly serious as time passes. It just seems like a very bad idea to play fast and loose with an industry standard like this. It comes back to bite you in the butt all too often. -- R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com