From owner-freebsd-questions@FreeBSD.ORG Wed Nov 14 02:08:40 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 BCBB5156 for ; Wed, 14 Nov 2012 02:08:40 +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 74EEA8FC12 for ; Wed, 14 Nov 2012 02:08:40 +0000 (UTC) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.14.5/8.14.5) with ESMTP id qAE28dZx048634; Tue, 13 Nov 2012 19:08:39 -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 qAE28dik048631; Tue, 13 Nov 2012 19:08:39 -0700 (MST) (envelope-from wblock@wonkity.com) Date: Tue, 13 Nov 2012 19:08:39 -0700 (MST) From: Warren Block To: "Ronald F. Guilmette" Subject: Re: Advanced Format Drive ? In-Reply-To: <4073.1352844470@tristatelogic.com> Message-ID: References: <4073.1352844470@tristatelogic.com> 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]); Tue, 13 Nov 2012 19:08:39 -0700 (MST) Cc: freebsd-questions@freebsd.org 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: Wed, 14 Nov 2012 02:08:40 -0000 On Tue, 13 Nov 2012, Ronald F. Guilmette wrote: > OK. I think that I always was doing that anyway. But I want to be sure > that I understand... If the size of the BSD partition is a multiple of, > say, !MB, then the _alignment_ of that partition will likewise (auto- > magically) be at least 1MB also? No. If you start with $0.63, and only add full dollars or tens, you will still never have an integer amount of dollars. > Or do I need to set the alignment separately, e.g. my manually running > bsdlabel? (Normally, I've just been using what noadays is being > called "guided" partitioning, you know, with the friendly curses-based > GUI. So As with fdisk, I have no real experience using bsdlabee from > teh command line. But I guess it is time that i learned how.) I don't know of a way to make fdisk and bsdlabel do the correct alignment. But that's okay, because gpart(8) does everything they do, and more. Creating MBRs and bsdlabels is more work, but gpart can do it, and do the juggling to get the bsdlabel partitions to line up. Again, I suggest that GPT is the much easier and more versatile way. But if you insist on MBR/bsdlabel, there are examples of creating it with gpart in the new gmirror section of the GEOM chapter of the Handbook: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-mirror.html