modules.d/90btrfs/module-setup.sh

   1 #!/bin/bash
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4
   5 # called by dracut
   6 check() {
   7     local _rootdev
   8     # if we don't have btrfs installed on the host system,
   9     # no point in trying to support it in the initramfs.
  10     type -P btrfs >/dev/null || return 1
  11
  12     [[ $hostonly ]] || [[ $mount_needs ]] && {
  13         for fs in ${host_fs_types[@]}; do
  14             [[ "$fs" == "btrfs" ]] && return 0
  15         done
  16         return 255
  17     }
  18
  19     return 0
  20 }
  21
  22 # called by dracut
  23 depends() {
  24     echo udev-rules
  25     return 0
  26 }
  27
  28 # called by dracut
  29 installkernel() {
  30     instmods btrfs
  31 }
  32
  33 # called by dracut
  34 install() {
  35     if ! inst_rules 64-btrfs.rules; then
  36         inst_rules "$moddir/80-btrfs.rules"
  37         case "$(btrfs --help)" in
  38             *device\ ready*)
  39                 inst_script "$moddir/btrfs_device_ready.sh" /sbin/btrfs_finished ;;
  40             *)
  41                 inst_script "$moddir/btrfs_finished.sh" /sbin/btrfs_finished ;;
  42         esac
  43     fi
  44
  45     if ! dracut_module_included "systemd"; then
  46         inst_hook initqueue/timeout 10 "$moddir/btrfs_timeout.sh"
  47     fi
  48
  49     inst_multiple -o btrfsck btrfs-zero-log
  50     inst $(command -v btrfs) /sbin/btrfs
  51 }
  52