Initramfs-tools based systems(Ubuntu and derivatives)
For easiest installation download and install the precompiled deb from releases.. However it is possible to build from source via the instructions on the main readme.
sudo -s
# Insert FIDO key.
fido2luks credential
# Tap FIDO key
# Copy returned string <CREDENTIAL>
nano /etc/fido2luks.conf
# Insert <CREDENTIAL>
# FIDO2LUKS_CREDENTIAL_ID=<CREDENTIAL>
set -a
. /etc/fido2luks.conf
fido2luks -i add-key /dev/<LUKS PARTITION>
# Current password: <Any current LUKS password>
# Password: <Password used as FIDO challange>
# Tap FIDO key
nano /etc/crypttab
# Append to end ",discard,initramfs,keyscript=fido2luks"
# E.g. sda6_crypt UUID=XXXXXXXXXX none luks,discard,initramfs,keyscript=fido2luks
update-initramfs -u
