#!/bin/bash # only run this on systemd systems, we handle the decrypt in mount-zfs.sh in the mount hook otherwise [[ -e /bin/systemctl ]] || return 0 # This script only gets executed on systemd systems, see mount-zfs.sh for non-systemd systems # import the libs now that we know the pool imported [ -f /lib/dracut-lib.sh ] && dracutlib=/lib/dracut-lib.sh [ -f /usr/lib/dracut/modules.d/99base/dracut-lib.sh ] && dracutlib=/usr/lib/dracut/modules.d/99base/dracut-lib.sh . "$dracutlib" # load the kernel command line vars [ -z "$root" ] && root=$(getarg root=) # If root is not ZFS= or zfs: or rootfstype is not zfs then we are not supposed to handle it. [ "${root##zfs:}" = "${root}" -a "${root##ZFS=}" = "${root}" -a "$rootfstype" != "zfs" ] && exit 0 # There is a race between the zpool import and the pre-mount hooks, so we wait for a pool to be imported while true; do zpool list -H | grep -q -v '^$' && break [[ $(systemctl is-failed zfs-import-cache.service) == 'failed' ]] && exit 1 [[ $(systemctl is-failed zfs-import-scan.service) == 'failed' ]] && exit 1 sleep 0.1s done # run this after import as zfs-import-cache/scan service is confirmed good if [[ "${root}" = "zfs:AUTO" ]] ; then root=$(zpool list -H -o bootfs | awk '$1 != "-" {print; exit}') else root="${root##zfs:}" root="${root##ZFS=}" fi # if pool encryption is active and the zfs command understands '-o encryption' if [[ $(zpool list -H -o feature@encryption $(echo "${root}" | awk -F\/ '{print $1}')) == 'active' ]]; then # if the root dataset has encryption enabled ENCRYPTIONROOT=$(zfs get -H -o value encryptionroot ${ZFS_DATASET}) if ! [ "${ENCRYPTIONROOT}" = "-" ]; then # decrypt them TRY_COUNT=5 while [ $TRY_COUNT != 0 ]; do zfs load-key "${ENCRYPTIONROOT}" <<< $(systemd-ask-password "Encrypted ZFS password for ${root}: ") [[ $? == 0 ]] && break ((TRY_COUNT-=1)) done fi fi