From owner-freebsd-stable@FreeBSD.ORG Thu Mar 26 09:56:03 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 671ED106567C; Thu, 26 Mar 2009 09:56:03 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id BEECD8FC2B; Thu, 26 Mar 2009 09:55:55 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from inchoate.localnet (ppp121-45-126-50.lns11.adl6.internode.on.net [121.45.126.50]) (authenticated bits=0) by cain.gsoft.com.au (8.13.8/8.13.8) with ESMTP id n2Q9tkhv036809 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 26 Mar 2009 20:25:47 +1030 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: Peter Jeremy Date: Thu, 26 Mar 2009 20:25:42 +1030 User-Agent: KMail/1.10.4 (Linux/2.6.27-11-generic; KDE/4.1.4; i686; ; ) References: <49C83673.3000604@aldan.algebra.com> <200903251925.36108.doconnor@gsoft.com.au> <20090326092504.GF56137@server.vk2pj.dyndns.org> In-Reply-To: <20090326092504.GF56137@server.vk2pj.dyndns.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart11060867.Y2l71WW5bB"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200903262025.43890.doconnor@gsoft.com.au> X-Spam-Score: -2.212 () BAYES_00,RDNS_DYNAMIC X-Scanned-By: MIMEDefang 2.63 on 203.31.81.10 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 09:56:09 -0000 --nextPart11060867.Y2l71WW5bB Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 26 March 2009 19:55:04 Peter Jeremy wrote: > On 2009-Mar-25 19:25:28 +1030, Daniel O'Connor =20 wrote: > >One other thing would be to make absolutely sure that your version of du= mp > > & 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. Hmm interesting.. I must confess I haven't had problems recently but I tend= to=20 use tar these days anyway since it's more portable. > 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. Could be, too long ago to remember :) =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart11060867.Y2l71WW5bB Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iD8DBQBJy1Ef5ZPcIHs/zowRAhr7AKClfJgj0nrgniAAEvpCB0F6+NgFiQCfRlhM WWs7qbDMmH4Gv12MURc+p/8= =GAR6 -----END PGP SIGNATURE----- --nextPart11060867.Y2l71WW5bB--