From owner-freebsd-emulation@FreeBSD.ORG  Wed Aug  6 02:37:07 2014
Return-Path: <owner-freebsd-emulation@FreeBSD.ORG>
Delivered-To: emulation@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 4B4F6790
 for <emulation@freebsd.org>; Wed,  6 Aug 2014 02:37:07 +0000 (UTC)
Received: from wonkity.com (wonkity.com [67.158.26.137])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "wonkity.com", Issuer "wonkity.com" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id EF1322BD7
 for <emulation@freebsd.org>; Wed,  6 Aug 2014 02:37:06 +0000 (UTC)
Received: from wonkity.com (localhost [127.0.0.1])
 by wonkity.com (8.14.9/8.14.9) with ESMTP id s762b4qC066098
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Tue, 5 Aug 2014 20:37:04 -0600 (MDT)
 (envelope-from wblock@wonkity.com)
Received: from localhost (wblock@localhost)
 by wonkity.com (8.14.9/8.14.9/Submit) with ESMTP id s762b40d066095;
 Tue, 5 Aug 2014 20:37:04 -0600 (MDT)
 (envelope-from wblock@wonkity.com)
Date: Tue, 5 Aug 2014 20:37:04 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Mike Tancsa <mike@sentex.net>
Subject: Re: Vritbox 4.3.12 and RELENG_6 guest ?
In-Reply-To: <53E18A4C.2070100@sentex.net>
Message-ID: <alpine.BSF.2.11.1408052033070.63230@wonkity.com>
References: <53E18A4C.2070100@sentex.net>
User-Agent: Alpine 2.11 (BSF 23 2013-08-11)
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3
 (wonkity.com [127.0.0.1]); Tue, 05 Aug 2014 20:37:04 -0600 (MDT)
Cc: "freebsd-emulation@freebsd.org" <emulation@freebsd.org>
X-BeenThere: freebsd-emulation@freebsd.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: Development of Emulators of other operating systems
 <freebsd-emulation.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-emulation>, 
 <mailto:freebsd-emulation-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-emulation/>
List-Post: <mailto:freebsd-emulation@freebsd.org>
List-Help: <mailto:freebsd-emulation-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-emulation>, 
 <mailto:freebsd-emulation-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 06 Aug 2014 02:37:07 -0000

On Tue, 5 Aug 2014, Mike Tancsa wrote:

> I have been trying to convert a FreeBSD 6 box to a vdi image without luck. 
> To do so, I did the following steps, but when I attach the .vdi file to the 
> VM I created, I dont get by the initial boot loader.
> Has anyone done anything like this ?
>
> dd if=/dev/zero of=sz.dd bs=1024k count=20000
> mdconfig -t vnode -f sz.dd
>
>
> gpart create -s MBR md0
> gpart add -t freebsd md0
> gpart set -a active -i 1 md0
> gpart bootcode -b /boot/boot0 md0

Multiboot a VM is a bit unusual.  /boot/mbr is the ordinary bootcode. 
If the original machine multibooted, it would probably be better as 
multiple VMs.

> gpart create -s BSD -n 20 md0s1

Bootcode is needed in the bsdlabel also:
http://www.wonkity.com/~wblock/docs/html/disksetup.html#_the_old_standard_mbr

gpart bootcode -b /boot/boot md0s1