From owner-freebsd-stable@FreeBSD.ORG Thu Mar 26 09:25:14 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BD55A10656C4 for ; Thu, 26 Mar 2009 09:25:14 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail34.syd.optusnet.com.au (mail34.syd.optusnet.com.au [211.29.133.218]) by mx1.freebsd.org (Postfix) with ESMTP id 4A6518FC19 for ; Thu, 26 Mar 2009 09:25:14 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from server.vk2pj.dyndns.org (c122-106-216-167.belrs3.nsw.optusnet.com.au [122.106.216.167]) by mail34.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id n2Q9P44b013340 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 26 Mar 2009 20:25:05 +1100 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.3/8.14.3) with ESMTP id n2Q9P4sO057618; Thu, 26 Mar 2009 20:25:04 +1100 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.3/8.14.3/Submit) id n2Q9P4N6057617; Thu, 26 Mar 2009 20:25:04 +1100 (EST) (envelope-from peter) Date: Thu, 26 Mar 2009 20:25:04 +1100 From: Peter Jeremy To: "Daniel O'Connor" Message-ID: <20090326092504.GF56137@server.vk2pj.dyndns.org> References: <49C83673.3000604@aldan.algebra.com> <200903251820.54749.doconnor@gsoft.com.au> <49C9E635.5010106@kkip.pl> <200903251925.36108.doconnor@gsoft.com.au> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Mjqg7Yu+0hL22rav" Content-Disposition: inline In-Reply-To: <200903251925.36108.doconnor@gsoft.com.au> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.19 (2009-01-05) Cc: "Mikhail T." , freebsd-stable@freebsd.org, fs@freebsd.org Subject: Re: support quality (Re: dump | restore fails: unknown tape header type 1853384566) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Mar 2009 09:25:15 -0000 --Mjqg7Yu+0hL22rav Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2009-Mar-25 19:25:28 +1030, Daniel O'Connor wrot= e: >One other thing would be to make absolutely sure that your version of dump= &=20 >restore are in sync, the are very machine/version dependent. Actually, they aren't - the archive format is very stable. (This is a fairly important requirement - you don't want to suddenly be unable to restore your backups after an upgrade). I can restore dumps made on FreeBSD4.8/i386 and FreeBSD4.9/alpha on a FreeBSD-current/amd64 system without problems. It's possible that you might have problems with a backup made using a very recent dump on a very old restore if you've used filesystem features that didn't exist when that restore was built. --=20 Peter Jeremy --Mjqg7Yu+0hL22rav Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (FreeBSD) iEYEARECAAYFAknLSfAACgkQ/opHv/APuIcudACgxNIAZcEZ2+95dCWS8+S1eIG/ 4msAn3S4G8J1LQPI/oCK+QF+teL5OmKF =eC27 -----END PGP SIGNATURE----- --Mjqg7Yu+0hL22rav--