From owner-freebsd-hackers@freebsd.org  Tue Feb 19 18:32:45 2019
Return-Path: <owner-freebsd-hackers@freebsd.org>
Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4B88914F892D
 for <freebsd-hackers@mailman.ysv.freebsd.org>;
 Tue, 19 Feb 2019 18:32:45 +0000 (UTC) (envelope-from hps@selasky.org)
Received: from mail.turbocat.net (turbocat.net [88.99.82.50])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 2784F6C027
 for <freebsd-hackers@freebsd.org>; Tue, 19 Feb 2019 18:32:43 +0000 (UTC)
 (envelope-from hps@selasky.org)
Received: from hps2016.home.selasky.org (unknown [176.74.212.121])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (No client certificate requested)
 by mail.turbocat.net (Postfix) with ESMTPSA id E0FF8260346
 for <freebsd-hackers@freebsd.org>; Tue, 19 Feb 2019 19:32:35 +0100 (CET)
To: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
Subject: FYI: Patch for booting FreeBSD using a 4K block size SSD
Message-ID: <af2eb2d7-b148-458d-aea0-8fbebf2a0489@selasky.org>
Date: Tue, 19 Feb 2019 19:30:09 +0100
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:60.0) Gecko/20100101
 Thunderbird/60.4.0
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
X-Rspamd-Queue-Id: 2784F6C027
X-Spamd-Bar: ------
Authentication-Results: mx1.freebsd.org;
 spf=pass (mx1.freebsd.org: domain of hps@selasky.org designates 88.99.82.50 as
 permitted sender) smtp.mailfrom=hps@selasky.org
X-Spamd-Result: default: False [-6.58 / 15.00]; ARC_NA(0.00)[];
 RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0];
 FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+a:mail.turbocat.net];
 TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain];
 PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org];
 DMARC_NA(0.00)[selasky.org]; RCPT_COUNT_ONE(0.00)[1];
 NEURAL_HAM_LONG(-1.00)[-1.000,0];
 IP_SCORE(-3.28)[ip: (-9.48), ipnet: 88.99.0.0/16(-4.66), asn: 24940(-2.26),
 country: DE(-0.01)]; MX_GOOD(-0.01)[mail.turbocat.net];
 NEURAL_HAM_SHORT(-0.99)[-0.987,0]; TO_DN_EQ_ADDR_ALL(0.00)[];
 FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[];
 MIME_TRACE(0.00)[0:+];
 ASN(0.00)[asn:24940, ipnet:88.99.0.0/16, country:DE];
 MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[];
 RCVD_COUNT_TWO(0.00)[2]
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers/>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 19 Feb 2019 18:32:45 -0000

Hi,

This patch allows you to create a new MBR and BSD label, which is 
bootable by intel based macs at least. The problem is GEOM uses 4K block 
size, while the boot loaders need 512 byte block size.

https://reviews.freebsd.org/D19245

--HPS