From owner-freebsd-current@FreeBSD.ORG  Tue Feb 17 19:58:54 2009
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 46EF71065676
	for <current@freebsd.org>; Tue, 17 Feb 2009 19:58:54 +0000 (UTC)
	(envelope-from phk@critter.freebsd.dk)
Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222])
	by mx1.freebsd.org (Postfix) with ESMTP id 0AB188FC0C
	for <current@freebsd.org>; Tue, 17 Feb 2009 19:58:53 +0000 (UTC)
	(envelope-from phk@critter.freebsd.dk)
Received: from critter.freebsd.dk (critter.freebsd.dk [192.168.61.3])
	by phk.freebsd.dk (Postfix) with ESMTP id 0D42C3F130;
	Tue, 17 Feb 2009 19:58:53 +0000 (UTC)
Received: from critter.freebsd.dk (localhost [127.0.0.1])
	by critter.freebsd.dk (8.14.3/8.14.3) with ESMTP id n1HJwulq015553;
	Tue, 17 Feb 2009 19:58:56 GMT (envelope-from phk@critter.freebsd.dk)
To: Marcel Moolenaar <xcllnt@mac.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 17 Feb 2009 10:59:57 PST."
	<9FE792C6-8560-4C64-BD74-CD70DF5EBBF5@mac.com> 
Date: Tue, 17 Feb 2009 19:58:56 +0000
Message-ID: <15552.1234900736@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Cc: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>,
	FreeBSD current mailing list <current@freebsd.org>,
	Ulf Lilleengen <ulf.lilleengen@gmail.com>
Subject: Re: boot0cfg -s vs. GEOM_PART_*? 
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, 17 Feb 2009 19:58:54 -0000

In message <9FE792C6-8560-4C64-BD74-CD70DF5EBBF5@mac.com>, Marcel Moolenaar wri
tes:

>That won't be as easy as boot0cfg. Both fdisk and bsdlabel
>do all partitioning operations in memory and then expect to
>dump/write the blob. This is not how gpart works, so there's
>a mismatch in paradigm.

The reason for that modus operandi, was that the kernel
only needed code to read the metadata, the software that
formatted and wrote the metadata could be contained
entirely in userland thus not bloating the kernel.

Your choice is legit as well, with today RAM sizes I doubt
the difference is measureable.

But not updating boot0cfg to support the new API got you
a bad mark in my book.

I would prefer if fdisk and bsdlabel also kept working
or at least gave some guidance on what to do.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.