As LUKS is specifically designed with anti-forensic features, a "trace" would not help at all. In fact changing a few bits in the keyslots in random locations is quite enough to make the data inacessible permanently. As others have said, without header backup there is no way. Side note: Encryption does not remove the need for backup. In fact, the FAQ discusses several encrypted backup options. Arno On Sat, Oct 29, 2011 at 05:05:59AM +1300, Aleksander Swirski wrote: > thank you for your replies. if someone knows, if it's possible to find some > trace of old header under the new one ... please let me know. if it's > definitely not possible ... please let me know. the crypt partition wasn't > moved or resized, also the home logical volume, which I lost was > 'continuous' and wasn't moved or resized. > > On 29 October 2011 05:03, Arno Wagner <arno@xxxxxxxxxxx> wrote: > > > On Fri, Oct 28, 2011 at 05:53:48PM +0200, Marc Ballarin wrote: > > > Am Samstag, den 29.10.2011, 04:23 +1300 schrieb Aleksander Swirski: > > > ... > > > > I now realize what might have happened. As I explained I set up same > > > > passphrase again on this crypt disk when installing new system. But I > > > > suspect, encryption key underneath could be changed and LVM is now > > > > scrambled? > > > > > > Yes, if you used LUKS this is exactly what happened. cryptsetup created > > > a new, random master key and wrote it over your old master key. > > > > I wonder whether I should as a warning about this at the beginning > > of the FAQ. > > > > Arno > > -- > > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > > arno@xxxxxxxxxxx > > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > > 338F > > ---- > > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > > > If it's in the news, don't worry about it. The very definition of > > "news" is "something that hardly ever happens." -- Bruce Schneier > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@xxxxxxxx > > http://www.saout.de/mailman/listinfo/dm-crypt > > > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@xxxxxxxxxxx GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
