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