man/fido2-crypttab.sh

   1 # SPDX-License-Identifier: MIT-0
   2
   3 # Enroll the security token in the LUKS2 volume. Replace /dev/sdXn by the
   4 # partition to use (e.g. /dev/sda1).
   5 sudo systemd-cryptenroll --fido2-device=auto /dev/sdXn
   6
   7 # Test: Let's run systemd-cryptsetup to test if this worked.
   8 sudo systemd-cryptsetup attach mytest /dev/sdXn - fido2-device=auto
   9
  10 # If that worked, let's now add the same line persistently to /etc/crypttab,
  11 # for the future. We don't want to use the (unstable) /dev/sdX name, so let's
  12 # figure out a stable link:
  13 udevadm info -q -r symlink /dev/sdXn
  14
  15 # Now add the line using the by-uuid symlink to /etc/crypttab:
  16 sudo bash -c 'echo "mytest /dev/disk/by-uuid/... - fido2-device=auto" >>/etc/crypttab'
  17
  18 # Depending on your distribution and encryption setup, you may need to manually
  19 # regenerate your initramfs to be able to use a FIDO2 device to unlock the
  20 # partition during early boot.
  21 # More information at https://unix.stackexchange.com/a/705809.
  22 # On Fedora based systems:
  23 sudo dracut --force
  24 # On Debian based systems:
  25 sudo update-initramfs -u