From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tim Small Subject: Re: Is this likely to cause me problems? Date: Wed, 22 Sep 2010 10:09:04 +0100 Message-ID: <4C99C7B0.4090807@seoss.co.uk> References: <94202.62107.qm@web51304.mail.re2.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <94202.62107.qm@web51304.mail.re2.yahoo.com> Sender: linux-raid-owner@vger.kernel.org To: "linux-raid@vger.kernel.org" Cc: Jon@eHardcastle.com List-Id: linux-raid.ids On 21/09/10 22:07, Jon Hardcastle wrote: > Are you sure this is the issue? Pretty sure. > the number of blocks is different in both measurements see below.. > Yes - differing CHS-compatible geometry will do this, because CHS-compatible partitions will start/end on the fake "cylinder" boundaries. So you have different amounts of unnecessary wastage at both the start and the end when using different number of pretend cylinders, heads, and sectors per track... If there's nothing on the disk yet, then surely you haven't got anything to lose by telling fdisk to use different CHS layouts (using the command line switches) anyway, or just ignoring CHS entirely and using the whole disk - and like I said it's highly unlikely anything on your system ever does anything with CHS block addressing anyway - Linux uses LBA addressing exclusively, and so do its bootloaders. Tim. -- South East Open Source Solutions Limited Registered in England and Wales with company number 06134732. Registered Office: 2 Powell Gardens, Redhill, Surrey, RH1 1TQ VAT number: 900 6633 53 http://seoss.co.uk/ +44-(0)1273-808309