From owner-freebsd-current@FreeBSD.ORG  Fri Apr 17 23:04:00 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id A4C8A106566B
	for <freebsd-current@freebsd.org>; Fri, 17 Apr 2009 23:04:00 +0000 (UTC)
	(envelope-from marcus@blazingdot.com)
Received: from marklar.blazingdot.com (marklar.blazingdot.com [207.154.84.83])
	by mx1.freebsd.org (Postfix) with SMTP id 73D8B8FC17
	for <freebsd-current@freebsd.org>; Fri, 17 Apr 2009 23:04:00 +0000 (UTC)
	(envelope-from marcus@blazingdot.com)
Received: (qmail 34033 invoked by uid 503); 17 Apr 2009 23:04:00 -0000
Date: Fri, 17 Apr 2009 16:03:59 -0700
From: Marcus Reid <marcus@blazingdot.com>
To: Greg 'groggy' Lehey <grog@FreeBSD.org>
Message-ID: <20090417230359.GA30758@blazingdot.com>
References: <49E895CB.2040407@lissyara.su>
	<20090417213125.GI13564@dereel.lemis.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20090417213125.GI13564@dereel.lemis.com>
X-Coffee-Level: nearly-fatal
User-Agent: Mutt/1.5.6i
Cc: Alex Keda <admin@lissyara.su>, freebsd-current@freebsd.org
Subject: Re: new usb stack - boot problem from usb hdd
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 17 Apr 2009 23:04:01 -0000

On Sat, Apr 18, 2009 at 07:31:25AM +1000, Greg 'groggy' Lehey wrote:
> On Friday, 17 April 2009 at 18:44:27 +0400, Alex Keda wrote:
> > After boot, before mount, disk da0 lost, or some partition
> > lost/uninitialised
> >
> > ...
> > umass0:0:0:-1: Attached to scbus0
> > da0 at umass-sim0 bus 0 target 0 lun 0
> > da0: <Hitachi HTS541680J9SA00 > Fixed Direct Access SCSI-2 device
> > da0: 40.000MB/s transfers
> > da0: 76319MB (156301488 512 byte sectors: 255H 63S/T 9729C)
> > Trying to mount root from ufs:/dev/da0s1a
> >
> > Manual root filesystem specification:
> >  <fstype>:<device>  Mount <device> using filesystem <fstype>
> >                       eg. ufs:da0s1a
> >  ?                  List valid disk boot devices
> >  <empty line>       Abort manual input
> 
> FWIW, I'm experiencing a similar problem with a USB stick.  I get an
> error 2 on the device entry (also /dev/da0s1a), followed by a panic
> with an incomplete stack backtrace.  I'm going to try remote debugging
> to get more information; watch this space.

There's a thread from a few days ago regarding this with a subject of
"Booting from usb hard disk".  There is a patch that allows me to boot,
but there are still problems (I have to select usb:da0s1a at the manual
root filesystem prompt still.)

  http://people.freebsd.org/~thompsa/root_wait.diff

This was committed but then backed out as a less-than-perfect solution.
Someone said that setting kern.cam.scsi_delay=10000 in loader.conf (or
with option 6 at the boot prompt) helped them, but that was not the
case for me.

Marcus