[dm-crypt] Unable to dump header with --dump-master-key

Ondrej Kozina okozina at redhat.com
Wed Mar 29 15:30:10 CEST 2017


On 03/29/2017 03:23 PM, Waqar Khan wrote:
> [root at testmachine1 ~]#  cryptsetup --dump-master-key luksDump /dev/dm-2
>
> WARNING!
> ========
> Header dump with volume key is sensitive information
> which allows access to encrypted partition without passphrase.
> This dump should be always stored encrypted on safe place.
>
> Are you sure? (Type uppercase yes): yes

                       ^^^^^^^^^

Hi,

I believe this is the cause. Just type the answer in uppercase :)

Kind regards
O.


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