From owner-freebsd-hackers@FreeBSD.ORG Sat Nov 29 04:52:25 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 269AC1065675 for ; Sat, 29 Nov 2008 04:52:25 +0000 (UTC) (envelope-from rick@kiwi-computer.com) Received: from kiwi-computer.com (keira.kiwi-computer.com [63.224.10.3]) by mx1.freebsd.org (Postfix) with SMTP id A68A48FC0A for ; Sat, 29 Nov 2008 04:52:24 +0000 (UTC) (envelope-from rick@kiwi-computer.com) Received: (qmail 5220 invoked by uid 2001); 29 Nov 2008 04:25:43 -0000 Date: Fri, 28 Nov 2008 22:25:43 -0600 From: "Rick C. Petty" To: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= Message-ID: <20081129042543.GA5094@keira.kiwi-computer.com> References: <2ACA3DE8F9758A48B8BE2C7A847F91F240CE6B@polaris.maxiscale.com> <20081126153510.6062cd55@bhuda.mired.org> <2ACA3DE8F9758A48B8BE2C7A847F91F240CE99@polaris.maxiscale.com> <20081126190545.17b79195@bhuda.mired.org> <2ACA3DE8F9758A48B8BE2C7A847F91F240CEB4@polaris.maxiscale.com> <861vwx4fd5.fsf@ds4.des.no> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <861vwx4fd5.fsf@ds4.des.no> User-Agent: Mutt/1.4.2.3i Cc: freebsd-hackers@freebsd.org Subject: Re: FreeBSD boot menu is missing X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: rick-freebsd2008@kiwi-computer.com List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Nov 2008 04:52:25 -0000 On Thu, Nov 27, 2008 at 11:45:10AM +0100, Dag-Erling Smørgrav wrote: > > Just make sure you leave a few unallocated blocks at the end of the disk > (for gmirror metadata). In most cases, this happens automatically, Well, you only need to leave room for 512 bytes or one hard drive sector, in the case of gmirror. I've never seen a drive that ends exactly on a cylinder boundary; hardware RAID assumes this too. I would like to hear of a drive which is an exact cylinder multiple and how hardware RAID handles those situations. I always just assume there's extra space that's not consumed. -- Rick C. Petty