[dm-crypt] LUKS encrypted hard disk crashed. Recovery question
arno at wagner.name
Fri Aug 19 13:58:41 CEST 2016
On Fri, Aug 19, 2016 at 13:45:21 CEST, Saibal Kumar Adhya wrote:
> [saibal] Thanks a lot Michael.
> > If you are able to somehow gain access to the key slots in the LUKS
> > header, it should be possible to decrypt the (stored) payload data,
> > the extent that the data recovery agency was able to recover the
> > What they were not able to recover will decrypt to nonsense.
> [saibal] I have couple of following question.
> 1) Is there a way to know, if the key slot area in the LUKS header has
> been recovered or not? How to recover the entire partition from there?
Try a LuksOpen. It does not care about filesystem damage, but it
will obnly work if header and keyslot are undamaged.
> 2) This question is for my information. As I understand, LUKS header
> and "key-slot" are very very critical. So, if any of these sectors get
> damaged then the entire partition is un-usable. Is there a backup copy
> of LUKS header and key slots, kept within the partition itself?
> Thanks in advance.
No. You have to do such a backup yourself. See most of FAQ Section 6:
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno at wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
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