From owner-freebsd-geom@FreeBSD.ORG Mon Dec 4 13:01:13 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7226516A407 for ; Mon, 4 Dec 2006 13:01:13 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.FreeBSD.org (Postfix) with ESMTP id 620C843CA2 for ; Mon, 4 Dec 2006 13:00:34 +0000 (GMT) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 13A7B487F5; Mon, 4 Dec 2006 14:01:06 +0100 (CET) Received: from localhost (pjd.wheel.pl [10.0.1.1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id A1AF945683; Mon, 4 Dec 2006 14:00:56 +0100 (CET) Date: Mon, 4 Dec 2006 14:00:49 +0100 From: Pawel Jakub Dawidek To: Alex Bramley Message-ID: <20061204130049.GA23412@garage.freebsd.pl> References: <8cffb8c80612031132s2cdd69d6ia812e3f4e017f69e@mail.gmail.com> <20061203195004.GA3183@garage.freebsd.pl> <8cffb8c80612031222h180cde0ch790707802ada44a1@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="lrZ03NoBR/3+SXJZ" Content-Disposition: inline In-Reply-To: <8cffb8c80612031222h180cde0ch790707802ada44a1@mail.gmail.com> X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-CURRENT i386 User-Agent: mutt-ng/devel-r804 (FreeBSD) X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.0.4 Cc: freebsd-geom@freebsd.org Subject: Re: Resurrecting a GELI volume X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Dec 2006 13:01:13 -0000 --lrZ03NoBR/3+SXJZ Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Dec 03, 2006 at 08:22:03PM +0000, Alex Bramley wrote: > On 12/3/06, Pawel Jakub Dawidek wrote: > >On Sun, Dec 03, 2006 at 07:32:29PM +0000, Alex Bramley wrote: > >> Hi, > >> > >> First, please CC me in any replies to the list, as I am (temporarily) > >> off list due to moving jobs. > >> > >> I accidentally overwrote the metadata of a GELI volume by using geli > >> init on the wrong device node (never try to do sysadmin tasks when > >> hungover). I have the correct key and passphrase, and I would like to > >> know whether it is possible to regain access to my lost data. I have > >> already tried running init again on the volume with the correct key > >> and passphrase, but (somewhat unsurprisingly) to no avail. Any > >> assistance would be much appreciated. > > > >Passphrase is only used to encrypt the master key, which is stored in > >metadata. That means you overwrote the master key and I'm afraid your > >data is lost if you haven't backed the master key up before (with 'geli > >backup'). >=20 > I don't suppose you could put some kind of check in to make this kind > of slip more difficult to achieve in future? I can't see many times > where you'd want to re-init an already encrypted volume. Hopefully it > won't be too difficult to taste the volume for already existing > metadata and ask for confirmation if it exists... Good idea. I'll add the check and '-f' flag for the 'init' subcommand to skip the check. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --lrZ03NoBR/3+SXJZ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFFdBwBForvXbEpPzQRAiGFAJsGQ3ebX8YhnyEI+lbWQaVWTAevOgCfXfiw kJfAR5pgwUNyz6BclwDOkVs= =CJH7 -----END PGP SIGNATURE----- --lrZ03NoBR/3+SXJZ--