From owner-freebsd-current@FreeBSD.ORG  Tue Oct 13 10:46:40 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 CC8EE106568F;
	Tue, 13 Oct 2009 10:46:40 +0000 (UTC) (envelope-from avg@icyb.net.ua)
Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140])
	by mx1.freebsd.org (Postfix) with ESMTP id C61008FC12;
	Tue, 13 Oct 2009 10:46:39 +0000 (UTC)
Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua
	[212.40.38.101])
	by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id NAA07724;
	Tue, 13 Oct 2009 13:46:38 +0300 (EEST)
	(envelope-from avg@icyb.net.ua)
Message-ID: <4AD45A8D.4070605@icyb.net.ua>
Date: Tue, 13 Oct 2009 13:46:37 +0300
From: Andriy Gapon <avg@icyb.net.ua>
User-Agent: Thunderbird 2.0.0.23 (X11/20090825)
MIME-Version: 1.0
To: freebsd-fs@FreeBSD.ORG, freebsd-current@FreeBSD.ORG
References: <4AD3220B.5030502@icyb.net.ua> <86ws30ikfw.fsf@gmail.com>
In-Reply-To: <86ws30ikfw.fsf@gmail.com>
X-Enigmail-Version: 0.95.7
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Cc: Anonymous <swell.k@gmail.com>
Subject: Re: zfs boot vs loader
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: Tue, 13 Oct 2009 10:46:40 -0000


Thanks to all who replied!
I think that I figured it out with your help.

'unload' does indeed unload zpool.cache and the latter is needed for proper zfs
root mounting.
'boot /other/kernel' executes some loader scripts and zpool.cache gets loaded in
this case (because of the settings in defaults/loader.conf).
When doing manual 'load xxx' and then just 'boot' no loader scripts are executed
and zpool.cache does not get loaded. In this case one has to load it manually
using the suggested 'load -t xxx' approach.


-- 
Andriy Gapon