update kernel multiboot

#!/bin/bash

# We're passed the version of the kernel being installed
inst_kern=$1

BOOT_DIR="/media/boot"
MULTIBOOT_DIR="${BOOT_DIR}"/multiboot

mv "${MULTIBOOT_DIR}"/uInitrd.linux "${MULTIBOOT_DIR}"/uInitrd.linux.bak
mv "${MULTIBOOT_DIR}"/Image.linux "${MULTIBOOT_DIR}"/Image.linux.bak
mv "${MULTIBOOT_DIR}"/meson64_odroidc2.dtb.linux "${MULTIBOOT_DIR}"/meson64_odroidc2.dtb.linux.bak

cp "${BOOT_DIR}"/uInitrd "${MULTIBOOT_DIR}"/uInitrd.linux
cp "${BOOT_DIR}"/Image "${MULTIBOOT_DIR}"/Image.linux
cp "${BOOT_DIR}"/meson64_odroidc2.dtb "${MULTIBOOT_DIR}"/meson64_odroidc2.dtb.linux