From owner-freebsd-xen@FreeBSD.ORG  Fri Dec 21 16:05:33 2012
Return-Path: <owner-freebsd-xen@FreeBSD.ORG>
Delivered-To: xen@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 1732529C;
 Fri, 21 Dec 2012 16:05:33 +0000 (UTC)
 (envelope-from seanbru@yahoo-inc.com)
Received: from mrout2.yahoo.com (mrout2.yahoo.com [216.145.54.172])
 by mx1.freebsd.org (Postfix) with ESMTP id E90F58FC13;
 Fri, 21 Dec 2012 16:05:29 +0000 (UTC)
Received: from [127.0.0.1] (proxy6.corp.yahoo.com [216.145.48.19])
 by mrout2.yahoo.com (8.14.4/8.14.4/y.out) with ESMTP id qBLG5AoT059039;
 Fri, 21 Dec 2012 08:05:10 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yahoo-inc.com;
 s=cobra; t=1356105910;
 bh=XR6oaUD8Ov4saQ0wfXHFP8jRORpnxgwrPAP2Ubv4B5I=;
 h=Subject:From:Reply-To:To:Cc:In-Reply-To:References:Content-Type:
 Date:Message-ID:Mime-Version:Content-Transfer-Encoding;
 b=DTK2tDWPWxCXZqELBbfkTCy9UP/cXU8zPTuVyvuPYNNy3M6SqSlKcoRkjv0kk9VSv
 E5ZzsxxMA/8Mx82w2QV5N7LqnuDd56QEnCauSaXj/iEbuIxep440BAh3LRVrlgpLLq
 gyaDxEqpXo869wyuV7iC20CRUIroUfhKi9L2cttA=
Subject: Re: XENHVM ada -> ad ?
From: Sean Bruno <seanbru@yahoo-inc.com>
To: Ion-Mihai Tetcu <itetcu@FreeBSD.org>
In-Reply-To: <20121221013138.7a428448@it.tim.tetcu.info>
References: <20121221013138.7a428448@it.tim.tetcu.info>
Content-Type: text/plain; charset="UTF-8"
Date: Fri, 21 Dec 2012 08:05:09 -0800
Message-ID: <1356105909.3022.3.camel@powernoodle.corp.yahoo.com>
Mime-Version: 1.0
X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port 
Content-Transfer-Encoding: 7bit
X-Milter-Version: master.31+4-gbc07cd5+
X-CLX-ID: 105910000
Cc: xen@FreeBSD.org
X-BeenThere: freebsd-xen@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
Reply-To: sbruno@FreeBSD.org
List-Id: Discussion of the freebsd port to xen - implementation and usage
 <freebsd-xen.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-xen>,
 <mailto:freebsd-xen-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-xen>
List-Post: <mailto:freebsd-xen@freebsd.org>
List-Help: <mailto:freebsd-xen-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-xen>,
 <mailto:freebsd-xen-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 21 Dec 2012 16:05:33 -0000

On Fri, 2012-12-21 at 01:31 +0200, Ion-Mihai Tetcu wrote:
> Hi,
> 
> 
> I have the feeling I'm missing something very basic here:
> 
> I have a 9-STABLE-amd64 (as of a few minutes ago, but I see the same
> thing with older versions) running as guest on Xen HVM (APIC, ACPI on).
> 
> I can boot the GENERIC kernel, but trying to boot the XENHVM kernel
> results in 
>  trying to mount root from ufs: /dev/ada0p2 [rw] ...
>  mountroot: waiting for device /dev/ada0p2 ...
>  Mounting from ufs:/dev/ada0p2 failed with error 19.
> 
> I can:
>  mountroot> ufs:ad0p2
> and it breaks there, of course.
> 
> Do I need to translate from 'ada' back to 'ad' if I use XENHVM? Why?
> 
> 
> Thanks,
> 


Yes.  adaX-->adX.  Look at the dmesg on bootup.

Sean