From owner-freebsd-geom@FreeBSD.ORG  Tue Jun 28 07:50:19 2011
Return-Path: <owner-freebsd-geom@FreeBSD.ORG>
Delivered-To: freebsd-geom@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 30803106566C
	for <freebsd-geom@freebsd.org>; Tue, 28 Jun 2011 07:50:19 +0000 (UTC)
	(envelope-from eirnym@gmail.com)
Received: from mail-iw0-f182.google.com (mail-iw0-f182.google.com
	[209.85.214.182])
	by mx1.freebsd.org (Postfix) with ESMTP id E80D38FC0C
	for <freebsd-geom@freebsd.org>; Tue, 28 Jun 2011 07:50:18 +0000 (UTC)
Received: by iwr19 with SMTP id 19so6620773iwr.13
	for <freebsd-geom@freebsd.org>; Tue, 28 Jun 2011 00:50:18 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:mime-version:in-reply-to:references:from:date
	:message-id:subject:to:cc:content-type:content-transfer-encoding;
	bh=13JhvMLN7cCaPMIOfXbOvI+b88vfUr1LGMKBi4N1sF4=;
	b=wCkZqTID94LFm0OY3p7VMwB4lF1j/ww3jYuh6Va7B2pZmEl9yud0hWObYmnkuhMC9j
	TrK5LHrx7VpZOVTy5nSGDCkoz+zbKVYbrn+bhb748Hh8yt0sltOSzzXmVqZF/KfxZ/xS
	FrCMmJgPRl1+K/GUbqRGeYLaX2QQvzz92UlqY=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:from:date:message-id:subject:to
	:cc:content-type:content-transfer-encoding;
	b=BXMusqxaojQkppeZGzCQsH8FW+hL9d2QBxAUycgMRI+V308L0ZTpWT8WaikM+2DaiY
	DWNvQHSAZDyGFtA/HoDaqUaWvVUUPESKDduSg14ec7suk/tx6soDwa90fnXxhHIGtMst
	6QpFJVn5L0nVw965DFG7ODrlAktTEMWmzgzvQ=
Received: by 10.231.207.71 with SMTP id fx7mr6565481ibb.168.1309247418269;
	Tue, 28 Jun 2011 00:50:18 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.231.38.5 with HTTP; Tue, 28 Jun 2011 00:49:58 -0700 (PDT)
In-Reply-To: <4E098651.6020909@yandex.ru>
References: <201106280510.p5S5A8O0073022@freefall.freebsd.org>
	<4E098651.6020909@yandex.ru>
From: Eir Nym <eirnym@gmail.com>
Date: Tue, 28 Jun 2011 11:49:58 +0400
Message-ID: <BANLkTi=XcLHjc3NCD89sbej6DqDaDZ_XaA@mail.gmail.com>
To: "Andrey V. Elsukov" <bu7cher@yandex.ru>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Cc: freebsd-geom@freebsd.org
Subject: Re: kern/157724: [geom] gpart(8) 'add' command must preserve gap
	for schemes
X-BeenThere: freebsd-geom@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: GEOM-specific discussions and implementations
	<freebsd-geom.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-geom>
List-Post: <mailto:freebsd-geom@freebsd.org>
List-Help: <mailto:freebsd-geom-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 28 Jun 2011 07:50:19 -0000

2011/6/28 Andrey V. Elsukov <bu7cher@yandex.ru>:
> On 28.06.2011 9:10, Eir Nym wrote:
>> =C2=A0according [1] and bsdlabel(8), we can preserve 0 if we use ZFS (th=
is
>> =C2=A0filesystem have space for boot code), and 8k for UFS (this filesys=
tem
>> =C2=A0have no space for boot code).
>>
>> =C2=A0So if we install UFS without boot, can we preserve no gap?
>>
>> =C2=A0[1]: [http://wiki.freebsd.org/RootOnZFS/ZFSBootPartition]
>
> You can use UFS and swap without offset too.
>

So we have answer what to do: we should document this gap for bootable
UFS. I think boot(8) and gpart(8) man page is the best place to do
this.
But boot loader install process for ZFS should be documented in man page to=
o.

-- Eir Nym

> --
> WBR, Andrey V. Elsukov
>