50-dracut.install

   1 #!/bin/sh
   2
   3 COMMAND="$1"
   4 KERNEL_VERSION="$2"
   5 BOOT_DIR_ABS="$3"
   6 KERNEL_IMAGE="$4"
   7
   8 ret=0
   9 case "$COMMAND" in
  10     add)
  11         INITRD_IMAGE_PREGENERATED=${KERNEL_IMAGE%/*}/initrd
  12         if [[ -f ${INITRD_IMAGE_PREGENERATED} ]]; then
  13             # we found an initrd at the same place as the kernel
  14             # use this and don't generate a new one
  15             cp "$INITRD_IMAGE_PREGENERATED" "$BOOT_DIR_ABS/initrd" \
  16                 && chown root:root "$BOOT_DIR_ABS/initrd" \
  17                 && chmod 0600 "$BOOT_DIR_ABS/initrd" \
  18                 && exit 0
  19         fi
  20
  21         if [[ -f /etc/kernel/cmdline ]]; then
  22             readarray -t BOOT_OPTIONS < /etc/kernel/cmdline
  23         fi
  24
  25         if ! [[ "${BOOT_OPTIONS[@]}" ]]; then
  26             read -ar BOOT_OPTIONS < /proc/cmdline
  27         fi
  28
  29         unset noimageifnotneeded
  30
  31         for ((i=0; i < "${#BOOT_OPTIONS[@]}"; i++)); do
  32             if [[ ${BOOT_OPTIONS[$i]} == root\=PARTUUID\=* ]]; then
  33                 noimageifnotneeded="yes"
  34                 break
  35             fi
  36         done
  37         dracut ${noimageifnotneeded:+--noimageifnotneeded} "$BOOT_DIR_ABS"/initrd "$KERNEL_VERSION"
  38         ret=$?
  39         ;;
  40     remove)
  41         rm -f -- "$BOOT_DIR_ABS"/initrd
  42         ret=$?
  43         ;;
  44 esac
  45 exit $ret