From owner-freebsd-questions@FreeBSD.ORG Fri Feb 24 21:24:20 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 12EC610656D0 for ; Fri, 24 Feb 2012 21:24:20 +0000 (UTC) (envelope-from omerfsen@gmail.com) Received: from mail-qy0-f182.google.com (mail-qy0-f182.google.com [209.85.216.182]) by mx1.freebsd.org (Postfix) with ESMTP id B728F8FC08 for ; Fri, 24 Feb 2012 21:24:19 +0000 (UTC) Received: by qcsg15 with SMTP id g15so781231qcs.13 for ; Fri, 24 Feb 2012 13:24:19 -0800 (PST) Received-SPF: pass (google.com: domain of omerfsen@gmail.com designates 10.229.114.210 as permitted sender) client-ip=10.229.114.210; Authentication-Results: mr.google.com; spf=pass (google.com: domain of omerfsen@gmail.com designates 10.229.114.210 as permitted sender) smtp.mail=omerfsen@gmail.com; dkim=pass header.i=omerfsen@gmail.com Received: from mr.google.com ([10.229.114.210]) by 10.229.114.210 with SMTP id f18mr3114159qcq.54.1330118659353 (num_hops = 1); Fri, 24 Feb 2012 13:24:19 -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=uoauJ5EHxFV/HchBxG1nuAAbfQoPOMmVkGar90evhI8=; b=mUscwJP+4fcjrI+c+7df0gaZKqObcMEk/J6iw++s2SD1Q5DMRpAZJJp8bVJ3FQ/VTC 85kW3YMTWsquORY49nNagp/7a49RwZIRyfWpgiMJGSDSs108eOy7nM8AjplRmzcs0YQP r07mcxwEY1gza/ySmn39EVrYWYS/nGS/itfBw= MIME-Version: 1.0 Received: by 10.229.114.210 with SMTP id f18mr2586339qcq.54.1330118659066; Fri, 24 Feb 2012 13:24:19 -0800 (PST) Received: by 10.229.24.81 with HTTP; Fri, 24 Feb 2012 13:24:18 -0800 (PST) In-Reply-To: References: Date: Fri, 24 Feb 2012 23:24:18 +0200 Message-ID: From: Omer Faruk SEN To: nightrecon@hotmail.com Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: 8.3-BETA1 installation problem X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Feb 2012 21:24:20 -0000 I have done a simple dd if=/dev/zero of=/dev/ad6 count=100 bs=1m which i think covers all. But still no luck. Regards. On Fri, Feb 24, 2012 at 8:11 PM, Michael Powell wrote: > Warren Block wrote: > > > On Fri, 24 Feb 2012, Omer Faruk SEN wrote: > > > >> Already done that but still habe the same issue. I can dd and sysctl but > >> after installing without using W at disk label screen still no luck. I > >> have also done > >> sysctl kern.geom.debugflags=16 on fixit and restarted installation but > >> still getting the same error. > > > > [Please don't top-post, it makes responding more difficult.] > > > >>> If you need to clear the old MBR the "old way", use a LiveFS or Fixit > >>> shell and do this (as root): > >>> > >>> sysctl kern.geom.debugflags=16 and: > >>> > >>> dd if=/dev/zero of=/dev/adx oseek=1 bs=512 count=1 > > > > The sysctl is not necessary. The dd may not erase enough of the disk. > > It will erase a bsdlabel, but not the MBR/PMBR. As always, be warned > > that this will erase the partition table on that disk, so make sure it's > > the correct target disk and that you have full backups: > > > > dd if=/dev/zero of=/dev/adX bs=512 count=34 > > ^^^^^^^^ > Excellent idea here. It covers GPT too, for as if a Linux distro was on the > disk previously, or anything else using GPT. For me I only needed the one > because my problem was only a change from FBSD 6.2 to 7.x something, > no GPT involved - my problem was only disklabel related. > > > Replace X with the correct drive number. > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >