contos7用vnc安装oracle12c时安装界面不显示

INFO: Completed localizing view at state
INFO: Waiting for completion of background operations
INFO: Completed background operations
INFO: Executing action at state getOCMDetails
INFO: Completed executing action at state
INFO: Waiting for completion of background operations
INFO: Completed background operations
INFO: Waiting for completion of background operations
INFO: Completed background operations
INFO: Moved to state
日志是这个样子

安装时显示

这是什么问题！！！