grub2: cryptomount

 
 16.3.19 cryptomount
 -------------------
 
  -- Command: cryptomount device|'-u' uuid|'-a'|'-b'
      Setup access to encrypted device.  If necessary, passphrase is
      requested interactively.  Option DEVICE configures specific grub
      device (SeeNaming convention); option '-u' UUID configures
      device with specified UUID; option '-a' configures all detected
      encrypted devices; option '-b' configures all geli containers that
      have boot flag set.
 
      GRUB suports devices encrypted using LUKS and geli.  Note that
      necessary modules (LUKS and GELI) have to be loaded manually before
      this command can be used.