Date: Thu, 7 Feb 2008 00:56:55 +0100 From: Nikola =?UTF-8?B?TGXEjWnEhw==?= <nikola.lecic@anthesphoria.net> To: "Ulrich Spoerlein" <uspoerlein@gmail.com> Cc: stable@freebsd.org Subject: Re: Reconstruct disklabel for UFS and GELI volumes Message-ID: <20080207005655.54e54bd5@anthesphoria.net> In-Reply-To: <7ad7ddd90802061204p35d0368ekbb54149287618f6a@mail.gmail.com>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: RIPEMD160 On Wed, 6 Feb 2008 21:04:23 +0100 "Ulrich Spoerlein" <uspoerlein@gmail.com> wrote: > Hi, > > Somehow[TM] an installation of 4.11 to ad0s3 managed to wipe out my > existing disklabel for 7.0 on ad0s4. I now need to recover the > disklabel to get my system to boot! > > There were three labels > - ad0s4a: UFS, exact size unknown. Is it possible to infer this from > the UFS partition size? I can mount this already, as I simply wrote an > 'a' label of maximum size to the disklabel > - ad0s4b: GELI encrypted swap > - ad0s4d: GELI encrypted ZVOL > > I only need to find out the start of ad0s4d. Is the consumer size of > an GELI device stored in the last 512 bytes metadata? Or are there > some magic bytes in this 512 bytes so I could find out the exact end > of ad0s4b and thus the start of ad0s4d? Hi Ulrich, Try to scan that disk with sysutils/testdisk: http://www.cgsecurity.org/wiki/TestDisk Best regards. - -- Nikola Lečić = Никола Лечић fingerprint : FEF3 66AF C90E EDC3 D878 7CDC 956D F4AB A377 1C9B -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iQCVAwUBR6pJVfzDP9K2CKGYAQMrxAP9Fxng2ZaHmgB5ID6ZTVfOwNTTDrzPNlMX FRlOIKnksldTzhUdk0UfsJP9kgYpEInz6gQ3unSlUSBDTgN9jSW6yQGM0fW4hZ3H 27Ge5frdzETXg91TRsx1aP24i3SezNHO0AYLQw9cbD7ftDVHH1yzkmZrxSP7kYJ/ YPge/g7YRKI= =h/6V -----END PGP SIGNATURE-----home | help
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