source /etc/lsb-release
if [[ "${DISTRIB_CODENAME}" == "xenial" ]]; then
  kernel_version="4.4.0-1052"
elif [[ "${DISTRIB_CODENAME}" == "trusty" ]]; then
  kernel_version="4.4.0-1016"
else
  echo "!!! YOU MUST UPGRADE TO <= TRUSTY"
fi
apt-get -y autoremove ; apt-get update; apt-get -y install linux-aws linux-image-${kernel_version}-aws