From nobody Wed Apr 27 13:04:34 2022 X-Original-To: freebsd-stable@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4FAB11AAEFD5 for ; Wed, 27 Apr 2022 13:04:47 +0000 (UTC) (envelope-from ler@lerctr.org) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [IPv6:2602:fcdb:0:10:7ae3:b5ff:fe1b:23b4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "*.lerctr.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4KpJqy3pldz4j93 for ; Wed, 27 Apr 2022 13:04:46 +0000 (UTC) (envelope-from ler@lerctr.org) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=ler2019; h=Content-Transfer-Encoding:Content-Type:Message-ID:References: In-Reply-To:Subject:Cc:To:From:Date:MIME-Version:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=OMwlHbudgO/7ZdrVPq177uE75aK0n8pz+GL5CgNVSds=; b=yMV8a+ycavGI+hstmJwODF1kFV qox5FCMAr8Hd6vgIU1N6Zt4FqzJjXArf7LzvEQoBPfClguOXP52iQxsbQjaqPV9mP0xLaRfxj2arN ktKu3koqClyAFW8PqxGHp0+hqkl+TIO9sHGs8RY4tJGlfoLIfr0e/8XmU10sIDChUgb0Z+qaxEfyt SGCbUUxCbr2iXILYExKnvMK0YIpG4PzUfPRKGjYZzLp5UlFwv3TUBJeOi+U3bSL5w9khzzjB479Ep oVQMTa3pxNiw6b1Mzdc8gIv4eweJ9aLi2lW6SqWmmReofLSc1EqDmFf02Om5kOW3cQDHW53DvVQhA Ua/CvIyw==; Received-SPF: pass (thebighonker.lerctr.org: domain of lerctr.org designates 2602:fcdb:0:10:7ae3:b5ff:fe1b:23b4 as permitted sender) client-ip=2602:fcdb:0:10:7ae3:b5ff:fe1b:23b4; envelope-from=ler@lerctr.org; helo=webmail.lerctr.org; Received: from thebighonker.lerctr.org ([2602:fcdb:0:10:7ae3:b5ff:fe1b:23b4]:58692 helo=webmail.lerctr.org) by thebighonker.lerctr.org with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.95 (FreeBSD)) (envelope-from ) id 1njhLO-000EjI-Tp; Wed, 27 Apr 2022 08:04:34 -0500 Received: from 2001:500:30:0:1d9b:f152:e3b7:d17d by webmail.lerctr.org with HTTP (HTTP/1.1 POST); Wed, 27 Apr 2022 08:04:34 -0500 List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Date: Wed, 27 Apr 2022 08:04:34 -0500 From: Larry Rosenman To: Tomoaki AOKI Cc: "Eugene M. Zheganin" , freebsd-stable@freebsd.org Subject: Re: FreeBSD boot from root pool larger than 1Tb/cannot read MOS/all block copies unavailable In-Reply-To: <20220427214502.f9ef1317f2911fb5247d1757@dec.sakura.ne.jp> References: <2c2d774c-3677-c3b7-d099-71318743a434@zhegan.in> <20220427214502.f9ef1317f2911fb5247d1757@dec.sakura.ne.jp> Message-ID: <5914a66877e4799a405901b7c2c16505@lerctr.org> X-Sender: ler@lerctr.org Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4KpJqy3pldz4j93 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=lerctr.org header.s=ler2019 header.b=yMV8a+yc; dmarc=pass (policy=none) header.from=lerctr.org; spf=pass (mx1.freebsd.org: domain of ler@lerctr.org designates 2602:fcdb:0:10:7ae3:b5ff:fe1b:23b4 as permitted sender) smtp.mailfrom=ler@lerctr.org X-Spamd-Result: default: False [-3.98 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[lerctr.org:s=ler2019]; FREEFALL_USER(0.00)[ler]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-1.00)[-1.000]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[lerctr.org:+]; DMARC_POLICY_ALLOW(-0.50)[lerctr.org,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-0.98)[-0.978]; MLMMJ_DEST(0.00)[freebsd-stable]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:55103, ipnet:2602:fcdb::/36, country:US]; RCVD_COUNT_TWO(0.00)[2]; MID_RHS_MATCH_FROM(0.00)[] X-ThisMailContainsUnwantedMimeParts: N On 04/27/2022 7:45 am, Tomoaki AOKI wrote: [snip] > I've booting with around 1.5T or above (but under 2T) Root-on-ZFS > installation via UEFI for years. > > Basically, UEFI requires GPT partitioning. So many of those would boot > from larger than 1TB boot pool. > > As, IIRC, it is optional, some UEFI firmware would be able to boot from > MBR-patritioned disk but there would be some risk that they have the > same limitations as legacy BIOS in such situations. > > Note that possibly I'm just lucky enough not to be bitten. I've been booting UEFI from 10T pools for literally years, and I have a HP server with a 5T pool that IIRC boots GPT with BIOS, and a different Dell that has a 6T pool also GPT and UEFI. Just data points. -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106