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How to run cryptsetup luksFormat non-interactively

When LUKS formatting a partition, I recieve the message

# cryptsetup luksFormat /dev/sdb

WARNING!
========
This will overwrite data on /dev/sdb irrevocably.

Are you sure? (Type uppercase yes): YES

Followed by Enter passphrase:.

How can I automatically answer YES to the question "Are you sure ?

1
  • I have updated the question – 1228693 Dec 11 '16 at 17:56
9

You could make use of the --batch-mode, -q option of cryptsetup to skip the question.

$ cryptsetup -q luksFormat /dev/sdb

This option also disables password verification, so one should use it with care or in an automated environment

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