Hi, it is very easy: - cryptsetup isLuks <container> returns true - the container starts with the LUKS magic number, i.e. 'L','U','K','S', 0xBA, 0xBE. On Tue, Sep 22, 2015 at 20:52:16 CEST, H McCurdy wrote: > Hi, > > I've read the FAQ (but can't guarantee I didn't miss something). In the > warnings sections about the Ubuntu installer I read "... (it is very easy > to recognize a LUKS container)..." Always good to know it gets read! > I don't actually need to know, but I'd like to know how this is done. I > didn't find the answer in the FAQ, didn't find it using Google and didn't > find it on Stack Overflow. It is really very easy, both using cryptsetup and manyally: - "cryptsetup isLuks <container>" returns true use option -v for additional text output. - The container starts with the LUKS magic number, i.e. 'L','U','K','S', 0xBA, 0xBE. The reference for the second one would be the Luks Specification, available here: https://gitlab.com/cryptsetup/cryptsetup/wikis/LUKS-standard/on-disk-format.pdf (It is referenced in the FAQ at the end). Regards, Arno -- 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 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
