Date: Mon, 4 Dec 2006 14:00:49 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Alex Bramley <a.bramley@gmail.com> Cc: freebsd-geom@freebsd.org Subject: Re: Resurrecting a GELI volume Message-ID: <20061204130049.GA23412@garage.freebsd.pl> In-Reply-To: <8cffb8c80612031222h180cde0ch790707802ada44a1@mail.gmail.com> References: <8cffb8c80612031132s2cdd69d6ia812e3f4e017f69e@mail.gmail.com> <20061203195004.GA3183@garage.freebsd.pl> <8cffb8c80612031222h180cde0ch790707802ada44a1@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--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 <pjd@freebsd.org> 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--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20061204130049.GA23412>