#! /usr/bin/env sh

if [ $# -ne 1 ]
then
  echo "Usage: $0 sdx" >&2
  exit 64
fi

disk="/dev/$1"
partition=2

if [ ! -b "${disk}" ]
then
  echo "${disk} does not exists or is not a valid device" >&2
  exit 1
fi

dir=$(mktemp -d)

echo "Mounting partition..."
mount "${disk}${partition}" "${dir}" || {
  echo "Failed to mount partition" >&2
  exit 2
}

echo "Removing files..."
rm ${dir}/* -rf

echo "Unmounting partition..."
umount "${dir}"