ampel/zlevis-dracut
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rename: src/zlevis-module and src/zlevis-module-setup

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This commit is contained in:
Luc Bijl 2025-08-01 15:47:00 +02:00
parent 978545f313
commit 69c83cf170
3 changed files with 50 additions and 20 deletions
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21
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 decrypt` to obtain the key stored in the tpm2 and load it
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 decrypt $_root_pool | zfs load-key -L prompt "$_root_pool" || echo "zlevis failed to unlock $_root_pool"
fi
fi