From nobody Wed Nov 9 20:40:39 2022 X-Original-To: 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 4N6xgb0k6Xz4XMF4 for ; Wed, 9 Nov 2022 20:40:43 +0000 (UTC) (envelope-from pmh@hausen.com) Received: from mail2.pluspunkthosting.de (mail2.pluspunkthosting.de [217.29.33.228]) (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 4N6xgZ6lFxz46td; Wed, 9 Nov 2022 20:40:42 +0000 (UTC) (envelope-from pmh@hausen.com) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (87.138.185.145) by mail2.pluspunkthosting.de (Axigen) with (ECDHE-RSA-AES256-GCM-SHA384 encrypted) ESMTPSA id 33EA32; Wed, 9 Nov 2022 21:40:40 +0100 Content-Type: text/plain; charset=us-ascii 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 (Mac OS X Mail 16.0 \(3696.120.41.1.1\)) Subject: Re: changes to the zfs boot (was: Re: git: 72a1cb05cd23 - main - rc(8): Add a zpoolupgrade rc.d script) From: "Patrick M. Hausen" In-Reply-To: <20221109213149.Horde.hR9YpUCQ4NbOZcsX1JxqBgu@webmail.leidinger.net> Date: Wed, 9 Nov 2022 21:40:39 +0100 Cc: Warner Losh , Mark Millard , tsoome@freebsd.org, Li-Wen Hsu , current@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <202211070339.2A73dJlO027991@gitrepo.freebsd.org> <20221107121514.Horde.nulS9Wg1s3yzAsXXkuJRBa9@webmail.leidinger.net> <20221108105053.Horde.eqgFiBJe2ngGAj6BkXcv5-Z@webmail.leidinger.net> <20221109134610.Horde.JB7ibQTWprHbmIUfhg7JY7f@webmail.leidinger.net> <460205F9-5D59-4033-813B-C34E01BFD6C4@hausen.com> <20221109204509.Horde.lh5parVrWDSJ7kQCFa64hqe@webmail.leidinger.net> <5AFBB434-BB3B-4B5A-AB32-11DAFD03A2AD@hausen.com> <20221109205846.Horde.Rm5dcHB7p4mSbfFmxReYEDW@webmail.leidinger.net> <6C570897-1C17-43EF-A19C-0F50DA2669B0@hausen.com> <20221109211523.Horde.3dLzlxI4V6n_crjLsz_d08E@webmail.leidinger.net> <63316DBD-FFB7-44BA-ADD3-CACBE715518D@hausen.com> <20221109213149.Horde.hR9YpUCQ4NbOZcsX1JxqBgu@webmail.leidinger.net> To: Alexander Leidinger X-Mailer: Apple Mail (2.3696.120.41.1.1) X-Rspamd-Queue-Id: 4N6xgZ6lFxz46td X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:16188, ipnet:217.29.32.0/20, country:DE] X-ThisMailContainsUnwantedMimeParts: N Hi, > Am 09.11.2022 um 21:31 schrieb Alexander Leidinger = : > Some features are used directly when enabled. Some features go back to = the enabled state when some conditions are met. Some features are not = reversible without re-creating the pool (e.g. device_removal). The = zzpool-features man-page gives explanations which features belong into = which category. I already knew most of this, too - but thanks for bringing it to my = attention again. If I have to check each individual feature with respect to its = "bootability" in the future that is really bad news given that I have about a hundred servers to manage. So let me shortly describe our use case. I run servers hosting jails. I upgrade them e.g. like this: 13.1 13.2 13.3 14.1 ... The "habit" that I cited is to upgrade the zpools to match the release. = We use freebsd-update and in the rare cases where we don't we track releng/x.y. We do not run main/head in production. Can I be confident about upgrading my pools or not? Modulo bugs, but we = have test systems, of course. Kind regards, Patrick=