From owner-freebsd-questions@freebsd.org Mon Sep 2 12:04:56 2019 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2BE68DC3F0 for ; Mon, 2 Sep 2019 12:04:56 +0000 (UTC) (envelope-from tomdean@wavecable.com) Received: from smtp01.emerald.cmh.synacor.com (smtp.emerald.synacor.com [208.47.184.7]) (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 46MTKg21X2z4dn6 for ; Mon, 2 Sep 2019 12:04:54 +0000 (UTC) (envelope-from tomdean@wavecable.com) X_CMAE_Category: , , X-CNFS-Analysis: v=2.3 cv=FYpJO626 c=1 sm=1 tr=0 a=OAvc3ylXTZnwW13UMKQG5A==:117 a=OAvc3ylXTZnwW13UMKQG5A==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=KGjhK52YXX0A:10 a=9cW_t1CCXrUA:10 a=IkcTkHD0fZMA:10 a=jlQd9YhnVdoA:10 a=J70Eh1EUuV4A:10 a=JbhlE8a8jZIA:10 a=YKh6ZHIKNZMvPgUSbswA:9 a=QEXdDO2ut3YA:10 a=pHzHmUro8NiASowvMSCR:22 a=Ew2E2A-JSTLzCXPT_086:22 X-CM-Score: 0 X-Scanned-by: Cloudmark Authority Engine X-Authed-Username: dG9tZGVhbkB3YXZlY2FibGUuY29t X_CMAE_Category: , , X-CNFS-Analysis: X-CM-Score: X-Scanned-by: Cloudmark Authority Engine Received: from [24.113.143.192] ([24.113.143.192:45752] helo=[192.168.1.175]) by mail.wavecable.com (envelope-from ) (ecelerity 3.6.25.56547 r(Core:3.6.25.0)) with ESMTPA id 26/1A-23186-5650D6D5; Mon, 02 Sep 2019 08:04:53 -0400 Subject: Re: Convert MBR Partitions to GPT Cc: freebsd-questions@freebsd.org References: <1ef6d7eb-a7c9-2a5d-12b2-20c4ef255523@wavecable.com> <20190902133941.e563291f.freebsd@edvax.de> From: "Thomas D. Dean" Message-ID: <0e0c086c-a907-d224-98b8-9486d921e7a5@wavecable.com> Date: Mon, 2 Sep 2019 05:04:52 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190902133941.e563291f.freebsd@edvax.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 46MTKg21X2z4dn6 X-Spamd-Bar: +++++ Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of tomdean@wavecable.com designates 208.47.184.7 as permitted sender) smtp.mailfrom=tomdean@wavecable.com X-Spamd-Result: default: False [5.71 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:208.47.184.0/24]; TO_DN_NONE(0.00)[]; HFILTER_HELO_IP_A(1.00)[smtp01.emerald.cmh.synacor.com]; HFILTER_HELO_NORES_A_OR_MX(0.30)[smtp01.emerald.cmh.synacor.com]; MISSING_TO(2.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[192.143.113.24.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.10]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:36271, ipnet:208.47.184.0/23, country:US]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(0.72)[0.720,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[wavecable.com]; NEURAL_SPAM_MEDIUM(0.87)[0.871,0]; RCPT_COUNT_ONE(0.00)[1]; RCVD_TLS_LAST(0.00)[]; NEURAL_SPAM_LONG(1.00)[0.999,0]; RCVD_IN_DNSWL_NONE(0.00)[7.184.47.208.list.dnswl.org : 127.0.5.0]; IP_SCORE(0.12)[ipnet: 208.47.184.0/23(0.16), asn: 36271(0.48), country: US(-0.05)]; RWL_MAILSPIKE_POSSIBLE(0.00)[7.184.47.208.rep.mailspike.net : 127.0.0.17]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Sep 2019 12:04:56 -0000 On 9/2/19 4:39 AM, Polytropon wrote: > On Sun, 1 Sep 2019 19:47:33 -0700, Thomas D. Dean wrote: >> I have 5 disk drives, with two (same) OS's. Actually, two drives have >> Windows 7 and its secondary plex. From an earlier post: >> >> sata6g_1 HD0 SSD ubuntu 18.04 >> sata6g_2 HD1 WD5000 Ubuntu 18.04 >> sata3g_3 HD2 WD5000 windows 7 - not used >> sata3g_4 HD3 WD5000 backup >> sata3g_5 HD4 WD5000 windows 7 secondary plex- not used >> sata3g_6 DVD DRW-24B3LT >> sata6g_E1 (empty) >> sata6g_E2 (empty) >> >> I plan to keep the SSD Ubuntu install until I can get FreeBSD up and >> running the way I want. >> >> So, for now, I want to install FreeBSD on sata3g_5 HD4. >> >> My motherboard, ASUS P9X79 PRO has support for UEFI boot. >> >> Is it worth the effort to change everything to GPT, or, should I just >> use GPT on the FreeBSD disk? I am leaning toward the later, but, ... >> >> I think the future has a SSD for FreeBSD. > > Don't confuse UEFI and GPT. :-) > > YOu can use both GPT and MBR (not on the same disk, of course, > but on different disks). Choosing MBR is suggested today only > for the few cases where it's absolutely needed. Use GPT if you > can. > > You cannot "convert" between the two except via "backup, re-init, > restore", which probably is not what you have in mind. > > But as it is about a new installation of FreeBSD into a multi-OS > setting, I'd suggest to leave everything untouched, install > FreeBSD on its disk using GPT partitioning, and add a "chain loader" > entry to GRUB configuration that boots FreeBSD. GRUB can understand > both MBR and GPT, so it doesn't matter. > Something, possibly BSDinstall or, maybe something unknown made the 2 Windows 7 disks unbootable. Great, now I can use them for something other than adding weight to the box. I changed HD2, sdc to GPT with gparted. I installed Ubuntu 18.04 on it. I booted sda and used update-grub2. Seemed to go OK, but I could not get grub to boot sdc. The boot menu listed sdc, but when selected igrub actually booted sda. Looking at boot/grub/grub.cfg, I see the menuentry for sdc to have the same values as sda. grub bug?? Tom Dean