xref: /freebsd/sys/contrib/openzfs/contrib/dracut/90zfs/zfs-generator.sh.in (revision d411c1d696ef35d60f8c3564e5eef7aeafa2fece) 
1#!/bin/sh
2# shellcheck disable=SC2016,SC1004,SC2154
3
4grep -wq debug /proc/cmdline && debug=1
5[ -n "$debug" ] && echo "zfs-generator: starting" >> /dev/kmsg
6
7GENERATOR_DIR="$1"
8[ -n "$GENERATOR_DIR" ] || {
9    echo "zfs-generator: no generator directory specified, exiting" >> /dev/kmsg
10    exit 1
11}
12
13# shellcheck source=zfs-lib.sh.in
14. /lib/dracut-zfs-lib.sh
15decode_root_args || exit 0
16
17[ -n "$debug" ] && echo "zfs-generator: writing extension for sysroot.mount to $GENERATOR_DIR/sysroot.mount.d/zfs-enhancement.conf" >> /dev/kmsg
18
19
20mkdir -p "$GENERATOR_DIR"/sysroot.mount.d "$GENERATOR_DIR"/dracut-pre-mount.service.d
21
22{
23    echo "[Unit]"
24    echo "Before=initrd-root-fs.target"
25    echo "After=zfs-import.target"
26    echo
27    echo "[Mount]"
28    echo "PassEnvironment=BOOTFS BOOTFSFLAGS"
29    echo 'What=${BOOTFS}'
30    echo "Type=zfs"
31    echo 'Options=${BOOTFSFLAGS}'
32} > "$GENERATOR_DIR"/sysroot.mount.d/zfs-enhancement.conf
33ln -fs ../sysroot.mount "$GENERATOR_DIR"/initrd-root-fs.target.requires/sysroot.mount
34
35{
36    echo "[Unit]"
37    echo "After=zfs-import.target"
38} > "$GENERATOR_DIR"/dracut-pre-mount.service.d/zfs-enhancement.conf
39
40[ -n "$debug" ] && echo "zfs-generator: finished" >> /dev/kmsg
41
42exit 0
43