private StorageMount getPrimaryExternal(Context context) {
      StorageMount mount = null;

      if (SystemUtils.isPrimaryExternalStorageMounted()) {
        File dir = Environment.getExternalStorageDirectory();

        String label = context.getString(R.string.device_storage);
        String description =
            UIUtils.getBytesInHuman(SystemUtils.getAvailableStorageSize(dir))
                + " "
                + context.getString(R.string.available);
        String path = dir.getAbsolutePath();

        mount = new StorageMount(label, description, path, true);
      }

      return mount;
    }