zlevis-dracut/zlevis.sh

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#!/bin/sh
# First make sure the zfs kmod is loaded
modprobe zfs 2>/dev/null
udevadm settle
# Inspired by Alpine Linux's mkinitfs script - search for encrypted pool's by means of the cmdline root atribute
local _root_vol="${root}"
local _root_pool="${_root_vol%%/*}"
# Import the root pool
zpool import -N -d /dev $_root_pool
# If the pool is encrypted run zlevis-fetch to decrypt using the tpm2
if [ $(zpool list -H -o feature@encryption $_root_pool) = "active" ]; then
local _encryption_root=$(zfs get -H -o value encryptionroot $_root_vol)
if [ "$_encryption_root" != "-" ]; then
zlevis-fetch || echo "Zlevis-fetch failed!"
fi
fi