mkinitrd-dracut.sh

   1 #!/bin/bash --norc
   2 kver=$(uname -r)
   3
   4 error() { echo "$@" >&2; }
   5
   6 usage () {
   7     [[ $1 = '-n' ]] && cmd=echo || cmd=error
   8
   9     $cmd "usage: ${0##*/} [--version] [--help] [-v] [-f] [--preload <module>]"
  10     $cmd "       [--image-version] [--with=<module>]"
  11     $cmd "       [--nocompress]"
  12     $cmd "       <initrd-image> <kernel-version>"
  13     $cmd ""
  14     $cmd "       (ex: ${0##*/} /boot/initramfs-$kver.img $kver)"
  15
  16     [[ $1 = '-n' ]] && exit 0
  17     exit 1
  18 }
  19
  20 # Little helper function for reading args from the commandline.
  21 # it automatically handles -a b and -a=b variants, and returns 1 if
  22 # we need to shift $3.
  23 read_arg() {
  24     # $1 = arg name
  25     # $2 = arg value
  26     # $3 = arg parameter
  27     local rematch='^[^=]*=(.*)$'
  28     if [[ $2 =~ $rematch ]]; then
  29         read "$1" <<< "${BASH_REMATCH[1]}"
  30     elif [[ $3 != -* ]]; then
  31         # Only read next arg if it not an arg itself.
  32         read "$1" <<< "$3"
  33         # There is no way to shift our callers args, so
  34         # return 1 to indicate they should do it instead.
  35         return 1
  36     fi
  37 }
  38
  39 while (($# > 0)); do
  40     case ${1%%=*} in
  41         --with-usb) read_arg usbmodule "$@" || shift
  42             basicmodules="$basicmodules ${usbmodule:-usb-storage}"
  43             unset usbmodule;;
  44         --with-avail) read_arg modname "$@" || shift
  45             basicmodules="$basicmodules $modname";;
  46         --with) read_arg modname "$@" || shift
  47             basicmodules="$basicmodules $modname";;
  48         --version)
  49             echo "mkinitrd: dracut compatibility wrapper"
  50             exit 0;;
  51         -v|--verbose) dracut_args="${dracut_args} -v";;
  52         -f|--force) dracut_args="${dracut_args} -f";;
  53         --preload) read_arg modname "$@" || shift
  54             basicmodules="$basicmodules $modname";;
  55         --image-version) img_vers=yes;;
  56         --rootfs) read_arg rootfs "$@" || shift
  57             dracut_args="${dracut_args} --filesystems $rootfs";;
  58         --nocompress) dracut_args="$dracut_args --no-compress";;
  59         --help) usage -n;;
  60         --builtin) ;;
  61         --without*) ;;
  62         --without-usb) ;;
  63         --fstab*) ;;
  64         --ifneeded) ;;
  65         --omit-scsi-modules) ;;
  66         --omit-ide-modules) ;;
  67         --omit-raid-modules) ;;
  68         --omit-lvm-modules) ;;
  69         --omit-dmraid) ;;
  70         --allow-missing) ;;
  71         --net-dev*) ;;
  72         --noresume) ;;
  73         --rootdev*) ;;
  74         --thawdev*) ;;
  75         --rootopts*) ;;
  76         --root*) ;;
  77         --loopdev*) ;;
  78         --loopfs*) ;;
  79         --loopopts*) ;;
  80         --looppath*) ;;
  81         --dsdt*) ;;
  82         --bootchart) ;;
  83         *) if [[ ! $target ]]; then
  84             target=$1
  85             elif [[ ! $kernel ]]; then
  86             kernel=$1
  87             else
  88             usage
  89             fi;;
  90     esac
  91     shift
  92 done
  93
  94 [[ $target && $kernel ]] || usage
  95 [[ $img_vers ]] && target="$target-$kernel"
  96
  97 if [[ $basicmodules ]]; then
  98         dracut $dracut_args --add-drivers "$basicmodules" "$target" "$kernel"
  99 else
 100         dracut $dracut_args "$target" "$kernel"
 101 fi