public void saveToInstallDir(ByteBuffer byteBuffer, String fileName) throws IOException {
    String destination = this.libRoot + File.separator + INSTALL_DIR + File.separator + fileName;
    saveToDir(byteBuffer, destination);
  }
@param byteBuffer file
@param fileName Absolute Path will be libRoot + File_Separator + INSTALL_DIR + File.separator +
    fileName
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/executable/ExecutableManager.java