Hi David, it depends. There are some critical values that need to be there, namely the salt values and the keyslot contents. If they are undamaged, full recovery is usually possible. Please post or send me the output of head -c 1k <LUKS-device> | hd That should tell us more. It will not compromise the security of your data in any way, all values in that area are public. In the meantime, do not write _anything_ to that disk! In particular do _not_ try to re-create that LUKS container, that will reliably erase your data! Although you probably do not want to hear this, this was your second mistake. The first was not making a header backup as strongly recommended in the LUKS documentation. Just for future reference. As to recovery possibilities, it is really all-or-nothing. About half of the people that manage to damage the header get their data back, by my personal, completely unscientific estimation. Arno On Fri, Feb 28, 2014 at 21:42:06 CET, David Kisjuhasz wrote: > Hi Cryptsetup-TEAM, > > I just did a mistake :(. > > I think i created accidently a partition over > my 2 TB encrypted drive.(without any mkfs) > > Since then i can not open the Luks any more. > > > Is there a possibility to repair the header? , > or to get my data back , or some of my data? > > Thanks, > > David > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@xxxxxxxxxxx GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- A good decision is based on knowledge and not on numbers. - Plato _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt