flash_uboot() {
  echo "A new U-Boot version needs to be flashed onto /dev/mmcblk0."
  echo "Do this now? [y|N]"
  read -r shouldwe
  if [[ $shouldwe =~ ^([yY][eE][sS]|[yY])$ ]]; then
    dd if=/boot/MLO of=/dev/mmcblk0 count=1 seek=1 conv=notrunc bs=128k
    dd if=/boot/u-boot.img of=/dev/mmcblk0 count=2 seek=1 conv=notrunc bs=384k
  else
    echo "You can do this later by running:"
    echo "# dd if=/boot/MLO of=/dev/mmcblk0 count=1 seek=1 conv=notrunc bs=128k"
    echo "# dd if=/boot/u-boot.img of=/dev/mmcblk0 count=2 seek=1 conv=notrunc bs=384k"
  fi
}

post_install() {
  flash_uboot
}

post_upgrade() {
  flash_uboot
  if (( $(vercmp $2 2016.03-1) < 0 )); then
    echo ' >>> Note: uEnv.txt is no longer sourced. Make any customizations within /boot/boot.txt'
    echo '           and run ./mkscr within /boot to convert it to the boot.scr file.'
  fi
}