directoryPermissions =
                () -> {
                  throw new IOException("unrecognized FileSystem type " + FileSystems.getDefault());
                };
      }
    }

    private static PermissionSupplier userPermissions() {
      try {
        UserPrincipal user =
            FileSystems.getDefault()
                .getUserPrincipalLookupService()
                .lookupPrincipalByName(getUsername());

		var hint string
		if endpoint.URL != nil {
			hint = fmt.Sprintf("Drive '%s' does not support O_DIRECT flags, MinIO erasure coding requires filesystems with O_DIRECT support", endpoint.Path)
		} else {
			hint = "Drives do not support O_DIRECT flags, MinIO erasure coding requires filesystems with O_DIRECT support"
		}
		logger.Fatal(config.ErrUnsupportedBackend(err).Hint("%s", hint), "Unable to initialize backend")

## Test using MinIO Client `mc`

`mc` provides a modern alternative to UNIX commands like ls, cat, cp, mirror, diff etc. It supports filesystems and Amazon S3 compatible cloud storage services. Follow the MinIO Client [Quickstart Guide](https://docs.min.io/community/minio-object-store/reference/minio-mc.html#quickstart) for further instructions.

## Upgrading MinIO

1.png?raw=true) | ![Dashboard](https://github.com/minio/minio/blob/master/docs/screenshots/pic2.png?raw=true) | ## Test using MinIO Client `mc` `mc` provides a modern alternative to UNIX commands like ls, cat, cp, mirror, diff etc. It supports filesystems and Amazon S3 compatible cloud storage services. Follow the MinIO Client [Quickstart Guide](https://min.io/docs/minio/linux/reference/minio-mc.html#quickstart) for further instructions. ## Upgrading MinIO Upgrades require zero downtime in MinIO,...

    // If a bkp file exists, use it instead.
    if (fileSystem.exists(journalFileBackup)) {
      // If journal file also exists just delete backup file.
      if (fileSystem.exists(journalFile)) {
        fileSystem.delete(journalFileBackup)
      } else {
        fileSystem.atomicMove(journalFileBackup, journalFile)
      }
    }

    civilizedFileSystem = fileSystem.isCivilized(journalFileBackup)

  directory: Path,
  maxSize: Long,
  fileSystem: FileSystem,
  taskRunner: TaskRunner,
) : Closeable,
  Flushable {
  /** Create a cache of at most [maxSize] bytes in [directory]. */
  constructor(
    fileSystem: FileSystem,
    directory: Path,
    maxSize: Long,
  ) : this(
    directory,
    maxSize,
    fileSystem,
    TaskRunner.INSTANCE,
  )

    }

    /**
     * Data transfer object representing filesystem statistics.
     */
    public static class FsObj {
        /**
         * Default constructor.
         */
        public FsObj() {
            // Default constructor
        }

        /** The percentage of used space on the filesystem. */
        public short percent;
        /** Used space in bytes */

    }

    @Test
    @DisplayName("Test readBytesWireFormat with unknown filesystem info class throws exception")
    void testReadBytesWireFormatUnknownFilesystemInfoClass() {
        response = new Smb2QueryInfoResponse(mockConfig, Smb2Constants.SMB2_0_INFO_FILESYSTEM, (byte) 99); // Unknown filesystem info class

        byte[] buffer = new byte[1024];
        int bufferIndex = 0;

 */
internal fun FileSystem.isCivilized(file: Path): Boolean {
  sink(file).use {
    try {
      delete(file)
      return true
    } catch (_: IOException) {
    }
  }
  delete(file)
  return false
}

/** Delete file we expect but don't require to exist. */
internal fun FileSystem.deleteIfExists(path: Path) {
  try {
    delete(path)

            assertEquals(1, Smb2Constants.SMB2_0_INFO_FILE, "File info level must be 1");
        }

        @Test
        @DisplayName("Filesystem info level should be 2")
        void testInfoFilesystem() {
            assertEquals(2, Smb2Constants.SMB2_0_INFO_FILESYSTEM, "Filesystem info level must be 2");
        }

        @Test
        @DisplayName("Security info level should be 3")
        void testInfoSecurity() {