#!/usr/bin/bash

COMMAND="$1"

KERNEL_VERSION="$2"

KDUMP_INITRD_DIR_ABS="$3"

KERNEL_IMAGE="$4"

if ! [[ ${KERNEL_INSTALL_MACHINE_ID-x} ]]; then

    exit 0

fi

if [[ -d "$KDUMP_INITRD_DIR_ABS" ]]; then

    KDUMP_INITRD="initrdkdump"

else

    # If `KDUMP_BOOTDIR` is not writable, then the kdump

    # initrd must have been placed at `/var/lib/kdump`

    if [[ ! -w "/boot" ]]; then

        KDUMP_INITRD_DIR_ABS="/var/lib/kdump"

    else

        KDUMP_INITRD_DIR_ABS="/boot"

    fi

    KDUMP_INITRD="initramfs-${KERNEL_VERSION}kdump.img"

fi

ret=0

case "$COMMAND" in

    add)

        # Do nothing, kdump initramfs is strictly host only

        # and managed by kdump service

        ;;

    remove)

        rm -f -- "$KDUMP_INITRD_DIR_ABS/$KDUMP_INITRD"

        ret=$?

        ;;

esac

exit $ret