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# SPDX-License-Identifier: MIT-0
# Enroll the TPM2 security chip in the LUKS2 volume, and bind it to PCR 7
# only. Replace /dev/sdXn by the partition to use (e.g. /dev/sda1).
sudo systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=7 /dev/sdXn
# Test: Let's run systemd-cryptsetup to test if this worked.
sudo /usr/lib/systemd/systemd-cryptsetup attach mytest /dev/sdXn - tpm2-device=auto
# If that worked, let's now add the same line persistently to /etc/crypttab,
# for the future.
sudo bash -c 'echo "mytest /dev/sdXn - tpm2-device=auto" >>/etc/crypttab'
# Depending on your distribution and encryption setup, you may need
# to manually regenerate your initramfs to be able to use
# a TPM2 security chip to unlock the partition during early boot.
# More information at https://unix.stackexchange.com/a/705809
# On Fedora based systems:
sudo dracut --force
# On Debian based systems:
sudo update-initramfs -u
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