From nobody Wed May 04 13:21:53 2022 X-Original-To: freebsd-current@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 0FB351AB3897 for ; Wed, 4 May 2022 13:22:06 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-vs1-xe2a.google.com (mail-vs1-xe2a.google.com [IPv6:2607:f8b0:4864:20::e2a]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1D4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Ktctj2d5qz3GCW for ; Wed, 4 May 2022 13:22:05 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-vs1-xe2a.google.com with SMTP id e10so1195315vsr.1 for ; Wed, 04 May 2022 06:22:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20210112.gappssmtp.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8+aXChQeq0fI0vnnas0PVzcOuz+i7oOz+KXeb3qcV/c=; b=WYN5bVV+D7EwTP0TAk4NmoTy+aCFu9QJqMVavJeiASRS3uLX2insbpfKvklFrfH97O SQRvIbd0nSPfGjaFze43lTyPO9lM1DRMJXacvBczOyPTJHe7VjeKoPqobdGs7BuIWmI8 qeafJi1Dlyg22rMpa3/QVEyI8t7PlKwuuh+BB6spo3cBFlz23BfZZuuuRCGB6RvFC2Dt +ufOxun9HRq3IrbyFd87D0fv8ZW5dgbpJxuR4+Qu89iK+Qai52Al2ILYq64wHmde9Xsx eBBLcqZ0Jn2OguFFwgajHbxrD3hj7jPdpDx0WQOGLHqmlNzLw9/fk+UaiN3zJk7gCAzf AchA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8+aXChQeq0fI0vnnas0PVzcOuz+i7oOz+KXeb3qcV/c=; b=aCmv0KsITLznfTDSD5AGcf0X21U/JFolQT+MonvyHtbyRU2Yuyf0KgtC8Agsdhy/Vw aVF/BWV3woenDxszMW9LPgN9qjG5NBnMCvqsSFAqR2qfXF+Jpim/mT+sziUiZLx01wR/ ujCYoBXM7uaZHdV0lB6zJplpnFNSi7wuVmjoBAKzYJugbhWC1BBZ0JJXP07+VX/X6eH3 8gH1S4hhvTm3+f/13b2f3r68vQ0i/TmtnrWMX6AS6QTgXsIAFOnMMpkLcnj6VSfNxzCV YdEeoYyPXk0vNsYRCaOMJL5PsqxYDl2f4JulxuW9RtL3bk4ENkMxt/WpaWbwhloo6Ug2 7boQ== X-Gm-Message-State: AOAM53316IITwFfS61BAotgJMH4lbBV2y3iQfnmIyFXVgN7fcwxYiCdt 170vf6LR6ME+PdBShEO+fEcEXQXMF9Or4vqIEG6bpfWCu3w= X-Google-Smtp-Source: ABdhPJyf/9Eyr4tlXhsKv3GnQ6tm1csE3c9hzYl+zmWAJV7xsnisXpOi5p5da8ju5I7b7lltGzKXBSeD16Gp9oL8XDw= X-Received: by 2002:a67:1547:0:b0:32c:f3a1:bdd8 with SMTP id 68-20020a671547000000b0032cf3a1bdd8mr6651460vsv.44.1651670524754; Wed, 04 May 2022 06:22:04 -0700 (PDT) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 References: In-Reply-To: From: Warner Losh Date: Wed, 4 May 2022 07:21:53 -0600 Message-ID: Subject: Re: is gptzfsboot relevant on arm64? To: f451 Cc: FreeBSD Current Content-Type: multipart/alternative; boundary="000000000000ea11b005de2f824c" X-Rspamd-Queue-Id: 4Ktctj2d5qz3GCW X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=bsdimp-com.20210112.gappssmtp.com header.s=20210112 header.b=WYN5bVV+; dmarc=none; spf=none (mx1.freebsd.org: domain of wlosh@bsdimp.com has no SPF policy when checking 2607:f8b0:4864:20::e2a) smtp.mailfrom=wlosh@bsdimp.com X-Spamd-Result: default: False [-1.94 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[bsdimp-com.20210112.gappssmtp.com:s=20210112]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DMARC_NA(0.00)[bsdimp.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[bsdimp-com.20210112.gappssmtp.com:+]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::e2a:from]; NEURAL_HAM_SHORT(-0.94)[-0.943]; MLMMJ_DEST(0.00)[freebsd-current]; FREEMAIL_TO(0.00)[imap.cc]; FORGED_SENDER(0.30)[imp@bsdimp.com,wlosh@bsdimp.com]; R_SPF_NA(0.00)[no SPF record]; MIME_TRACE(0.00)[0:+,1:+,2:~]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[imp@bsdimp.com,wlosh@bsdimp.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-ThisMailContainsUnwantedMimeParts: N --000000000000ea11b005de2f824c Content-Type: text/plain; charset="UTF-8" On Wed, May 4, 2022 at 7:13 AM f451 wrote: > Hello, > > On arm64 I have this:- > > % uname -KU > 1400057 1400057 > % man 8 gptzfsboot > No manual entry for gptzfsboot > % > > Is gptzfsboot only for certain archs? I only query it because recently > zpool offered an > upgrade and suggested looking at it. I see that man 8 gptzfsboot is > available on > 13-stable on amd64. > No. It's not relevant for ARM 64. It's only relevant for BIOS systems, which are exclusive i386/amd64. ARM64 uses UEFI exclusively for booting, and has a combined boot loader for both ZFS and UFS systems (gptzfsboot exists because of space limitations on x86 and the kinda funky way that ZFS reserves space for a boot loader). Warner --000000000000ea11b005de2f824c Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


=
On Wed, May 4, 2022 at 7:13 AM f451 &= lt;f451@imap.cc> wrote:
Hello,

On arm64 I have this:-

% uname -KU
1400057 1400057
% man 8 gptzfsboot
No manual entry for gptzfsboot
%

Is gptzfsboot only for certain archs? I only query it because recently zpoo= l offered an
upgrade and suggested looking at it. I see that man 8 gptzfsboot is availab= le on
13-stable on amd64.

No. It's not re= levant for ARM 64. It's only relevant for BIOS systems, which are exclu= sive i386/amd64.
ARM64 uses UEFI exclusively for booting, and has= a combined boot loader for both ZFS and UFS
systems (gptzfsboot = exists because of space limitations on x86 and the kinda funky way that ZFS=
reserves space for a boot loader).

Warn= er=C2=A0
--000000000000ea11b005de2f824c--