From owner-freebsd-questions@FreeBSD.ORG Thu Nov 22 15:46:46 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 6B211D07 for ; Thu, 22 Nov 2012 15:46:46 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (wonkity.com [67.158.26.137]) by mx1.freebsd.org (Postfix) with ESMTP id 01BA88FC08 for ; Thu, 22 Nov 2012 15:46:45 +0000 (UTC) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.14.5/8.14.5) with ESMTP id qAMFkgAf015450; Thu, 22 Nov 2012 08:46:42 -0700 (MST) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.14.5/8.14.5/Submit) with ESMTP id qAMFkgoo015447; Thu, 22 Nov 2012 08:46:42 -0700 (MST) (envelope-from wblock@wonkity.com) Date: Thu, 22 Nov 2012 08:46:42 -0700 (MST) From: Warren Block To: Leslie Jensen Subject: Re: FreeBSD on SSD on ASUS P5KPL-C In-Reply-To: <50ADE635.9090900@eskk.nu> Message-ID: References: <50A83993.50401@ShaneWare.Biz> <50ADE635.9090900@eskk.nu> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (wonkity.com [127.0.0.1]); Thu, 22 Nov 2012 08:46:43 -0700 (MST) Cc: freebsd questions list X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Nov 2012 15:46:46 -0000 On Thu, 22 Nov 2012, Leslie Jensen wrote: > Warren Block skrev 2012-11-22 05:19: >> On Wed, 21 Nov 2012, Warren Block wrote: >> >>> Got a chance to set up a scratch drive and check this. Turns out I >>> left out the step of creating a "slice" (MBR partition) to hold the >>> FreeBSD partitions. Also, GPT labels cannot be used in an MBR. Fixed >>> below. I will probably add this to my disk setup article because it >>> has come up more than once. >> >> The fdisk/bsdlabel section of my disk setup article has been rewritten >> to use gpart. Feedback welcome. >> >> http://www.wonkity.com/~wblock/docs/html/disksetup.html > > Thank you very much for your work on this. I have found this conversation and > your article very informative. > > I've already installed W7 on my SSD but I let the installation program create > the windows (MBR) partition. > > I'm going to install FreeBSD 9.1 as soon as it is ready so I want to ask if > it is straight forward if I follow your instructions for creating the bsd > slice and partitions, or if I need to check anything in order to get the > correct alignment? The process should be correct, but it's new, so there may still be unexpected inaccuracy. As far as alignment on MBR, the trick is to use -a when creating the FreeBSD partitions. MBR slices are aligned to CHS values, pretty much assuring they will not be aligned to 4K boundaries. Using -a4k when creating FreeBSD partitions inside those misaligned slices will make sure the partitions are correctly aligned.