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

   1 #!/bin/bash
   2
   3 # called by dracut
   4 check() {
   5     local _rootdev
   6     # if we don't have btrfs installed on the host system,
   7     # no point in trying to support it in the initramfs.
   8     require_binaries btrfs || return 1
   9
  10     [[ $hostonly ]] || [[ $mount_needs ]] && {
  11         for fs in "${host_fs_types[@]}"; do
  12             [[ "$fs" == "btrfs" ]] && return 0
  13         done
  14         return 255
  15     }
  16
  17     return 0
  18 }
  19
  20 # called by dracut
  21 depends() {
  22     echo udev-rules
  23     return 0
  24 }
  25
  26 # called by dracut
  27 installkernel() {
  28     instmods btrfs
  29     # Make sure btfs can use fast crc32c implementations where available (bsc#1011554)
  30     instmods crc32c-intel
  31 }
  32
  33 # called by dracut
  34 install() {
  35     if ! inst_rules 64-btrfs.rules; then
  36         inst_rules "$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