From owner-freebsd-stable@FreeBSD.ORG Wed Apr 9 03:46:40 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 5F8BDA38 for ; Wed, 9 Apr 2014 03:46:40 +0000 (UTC) Received: from smtp.pobox.com (b-pb-sasl-quonix.pobox.com [208.72.237.35]) by mx1.freebsd.org (Postfix) with ESMTP id 1BD21119B for ; Wed, 9 Apr 2014 03:46:39 +0000 (UTC) Received: from smtp.pobox.com (unknown [127.0.0.1]) by b-sasl-quonix.pobox.com (Postfix) with ESMTP id 6407B7C2A4 for ; Tue, 8 Apr 2014 23:46:38 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=date:from:to :subject:message-id:references:mime-version:content-type :in-reply-to; s=sasl; bh=/ObxgcIjmOMluQBoVIgAHEkDScE=; b=jsuTCmR yJNfyP9bJWfJvByxZz4sNUIWAGQvPilqkJxRVNMD0LTKSbBWBXQrWZ7smDAiM96D 1vq5l13wmEMO+x4pXloQ1+fMW2Xu/jb0nMNJvDWyIjXj8fR1XbmeSfpgX1npWqwj l6uDbaoSnS7xztKVrwcns5ecNncdEXxfNKsQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=date:from:to :subject:message-id:references:mime-version:content-type :in-reply-to; q=dns; s=sasl; b=DDXtlwi0RxGTwDr6G+E8BhaGOTBPRcX5y geaRHHl3nPIJSZuLkBOdJlywUaObgl1XDla3O6fpxgnZiTpKvKNYY3pnKh4Z8vhg DGoNrlGETo/a7txn0sG0pjrGTgvHKINldQNNe3K/Mms6fpKxDltd7BdxXPCIpVt5 2B+RAPhVwA= Received: from b-pb-sasl-quonix.pobox.com (unknown [127.0.0.1]) by b-sasl-quonix.pobox.com (Postfix) with ESMTP id 524E87C2A3 for ; Tue, 8 Apr 2014 23:46:38 -0400 (EDT) Received: from localhost (unknown [76.99.50.36]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by b-sasl-quonix.pobox.com (Postfix) with ESMTPSA id 14BE67C2A2 for ; Tue, 8 Apr 2014 23:46:37 -0400 (EDT) Date: Tue, 8 Apr 2014 23:46:36 -0400 From: Chris Nehren To: freebsd-stable@freebsd.org Subject: Re: Note for those pulling in new ZFS feature flags Message-ID: <20140409034636.GC5433@behemoth> Mail-Followup-To: freebsd-stable@freebsd.org References: <20140407135421.GA16385@behemoth> <20140407145511.GA16747@behemoth> <20140407153040.GA17668@behemoth> <4C688889-96C0-4B8C-82E7-ACC3FB729FAB@gromit.dlib.vt.edu> <5344BEAF.1030206@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="WplhKdTI2c8ulnbP" Content-Disposition: inline In-Reply-To: <5344BEAF.1030206@FreeBSD.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-Pobox-Relay-ID: 8D30AAF4-BF99-11E3-A7AF-8D19802839F8-49531120!b-pb-sasl-quonix.pobox.com X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Apr 2014 03:46:40 -0000 --WplhKdTI2c8ulnbP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 09, 2014 at 13:29:51 +1000, Kubilay Kocak wrote: > > Oddly enough, I was bitten by this recently, too, and had the same=20 > > thing happen. I upgraded a pool and was struck by the fact that I=20 > > *wasn't* urged to update the boot code and so, after pondering "maybe= =20 > > this means I don't have to" decided not to. Of course, the system=20 > > wouldn't boot and I had to rescue it via a memstick. >=20 > Makes me wonder: >=20 > What might the issues be with upgrading the bootcode for users post-upgra= de? Are you asking, in other words, what problems could come from fixing the bootcode automatically whenever it's needed? The immediate, obvious concern is that maybe the bits sourced to do so aren't valid for the pool in question[0] or don't exist. The latter is easy to check for of course. I'm afraid I don't know enough to judge the former. [0]: Although I can't imagine a situation when that'd be the case, that doesn't mean such a sitaution doesn't exist. --=20 Chris Nehren --WplhKdTI2c8ulnbP Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQJbBAABAgBFBQJTRMKcPhSAAAAAABUAIHBrYS1hZGRyZXNzQGdudXBnLm9yZ2Nu ZWhyZW4rZnJlZWJzZC1zdGFibGVAcG9ib3guY29tAAoJEB6OfWhX/6FTFvMP/jr6 dubyiXDHhvd3ZXoepZqP/9jsW2Rp8c9shl3P4hyES622hpptk2eDOAB+WGhMLWqo R3rkVvM3bBdvWgKFzd8joFExA4ghEJfJCvvG33AwRvP1u7iptwQj8M2wJ03aoKAz pZPp5WDQAb7q0qq0DwuSjaV5IdNcdSjTIqH2hZDOXdv7lBHjh/Me7bGJL4TcDVNi vDlNBfvZGDPJfCTfgtmsqH9IcnYYboBqnim5cocsG1GXoHXiYt3GnNBnFlNsVWT2 Xchz/VNWYqPz8BoDiCHmGTkpH7mAjzd1OgjChZD8p2CPiqN88NRY5t/zQZ0KhCGw Bk0tbcugjII9pst7GF8Y8i40xqxjF4pcH7ytB/reN98zKwwrJd1Mn1+kUvncnCfT r5eUCe82n98NddNqzUDHJW5ri2tQXhmIBUaEg2QIFJdyVQkggGeIgyStPDg4v7H1 ATDGgDyNbnigZwQc0IDjQFxLY+lEGKI9paxMTHzhdhtswwV/07skWzkb88fFuaM5 cmoEk81Yp2lDLM+gVaOZq9qLQYc0WJx8ZMOsdJe2zOy7o9W/cYh0+L7FqHiwHRRz MQqd9MIjS4+d1r3jArIt7ma/70PCj+GtEMdvAvhrrLh+fHM0tUwZx1/beY9IqMP2 2pfdRVVFYanskCbpXtpe/pQ0r+/rUzkdbHcAaqhm =WSvT -----END PGP SIGNATURE----- --WplhKdTI2c8ulnbP--