From owner-freebsd-questions@freebsd.org Tue Dec 15 13:53:21 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 94314A48BF0 for ; Tue, 15 Dec 2015 13:53:21 +0000 (UTC) (envelope-from matthew@freebsd.org) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [IPv6:2001:8b0:151:1:3cd3:cd67:fafa:3d78]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.infracaninophile.co.uk", Issuer "infracaninophile.co.uk" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 25694162F for ; Tue, 15 Dec 2015 13:53:20 +0000 (UTC) (envelope-from matthew@freebsd.org) Received: from ox-dell39.ox.adestra.com (no-reverse-dns.metronet-uk.com [85.199.232.226] (may be forged)) (authenticated bits=0) by smtp.infracaninophile.co.uk (8.15.2/8.15.2) with ESMTPSA id tBFDrGIj068085 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 15 Dec 2015 13:53:16 GMT (envelope-from matthew@freebsd.org) Authentication-Results: smtp.infracaninophile.co.uk; dmarc=none header.from=freebsd.org DKIM-Filter: OpenDKIM Filter v2.10.3 smtp.infracaninophile.co.uk tBFDrGIj068085 Authentication-Results: smtp.infracaninophile.co.uk/tBFDrGIj068085; dkim=none; dkim-atps=neutral X-Authentication-Warning: lucid-nonsense.infracaninophile.co.uk: Host no-reverse-dns.metronet-uk.com [85.199.232.226] (may be forged) claimed to be ox-dell39.ox.adestra.com Subject: Re: freebsd-update, ZFS, and ver 8.2 To: freebsd-questions@freebsd.org References: <20151214194012.M53329@brightstar.bomgardner.net> <566FD253.5090906@FreeBSD.org> <1722921.FWY8hBbdbQ@curlew.lan> From: Matthew Seaman Message-ID: <56701B4A.3000403@freebsd.org> Date: Tue, 15 Dec 2015 13:53:14 +0000 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <1722921.FWY8hBbdbQ@curlew.lan> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3UN8Ju6fhcAoBRalggnWFt3o2iroskJj2" X-Virus-Scanned: clamav-milter 0.98.7 at lucid-nonsense.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on lucid-nonsense.infracaninophile.co.uk X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Dec 2015 13:53:21 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --3UN8Ju6fhcAoBRalggnWFt3o2iroskJj2 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 12/15/15 12:24, Mike Clarke wrote: > On Tuesday 15 Dec 2015 08:41:55 Matthew Seaman wrote: >=20 >> There's more to do to fully update ZFS after this. ZFS has a number o= f >> new features that are available in 10.x which you can use 'zpool >> upgrade' to enable. >=20 > As I understand it, upgrading the zpool would prevent you from revertin= g to=20 > the earlier 8.2 or 9.0 boot environments. In which case I expect it wou= ld be=20 > safer to avoid the "zpool upgrade" step until you're happy with the 10.= 2=20 > system. That's certainly true. Rewriting the boot blocks won't prevent you from going back to 8.x but updating the zpool certainly will. So, yes, don't do this step until you're happy that 10.2 is working properly and there's no need to revert. Cheers, Matthew --3UN8Ju6fhcAoBRalggnWFt3o2iroskJj2 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJWcBtKAAoJEABRPxDgqeTn07UP+wSm6e8dFsRubQmnFBNDBvDE D0c0qZab75prAHKRRh18zmI/U7FWzaOGaYuQq2EhS3Z9dkzQRaT79s8TvH2rWATy 8Jk1gpw7bOIoy1pdYkbB4+SKXX3ReYGydeSVpI9OzFxaRZZRm+ve6XYl/qaRAtcQ w1QwA8CczlsIgW/jlZYrUDPamCU8u1fTJ/xlD3gNA5xeM2vAhxD76hTU+JPOrSFf 3SGLeLScNgPireeevU1PnzdF7iLfcT+QdTm+W2v7Kq9tj39wo/4eQoSR+YXADCnb 2cvrpxCy+uu9dDzRFxmgYk0iqVtgUzLHHPeEQwzgykYqPPMBi1rDwxRSsn6VyfvA FWFgQa2mBmkmBlESKKW4zAkDSOvBx+XEDjdiF8dAof2VhCLyZKNVk0HlUy3ZBUsc 5xhb9sDODd7TO4PKfaCtPPbnj6+zUsIfnkmrC7LFpgMHSVOZFrjl6iR6Ze/Iso9w 3VXGH4S8nQcE+uhIA0S6M+mDliYgBDv5OUAzP5CEk/Q2KZ8eLjO2UrI5OxtslYYR yopjFuuKepIJjGcfCCWsRk/zz7XbfaNson6Ys2ND5asfGOy8XhojJZA7nXeQ9lmm Hoil1MHWup3kDm4HoirITlN/vph/JoqUZdArpGY1SJAuzYEya0eIDcXtfQqm1MW6 wdofDHCDRiYwySueNMKA =BfbP -----END PGP SIGNATURE----- --3UN8Ju6fhcAoBRalggnWFt3o2iroskJj2--