问题 ：centos无法启动，提示
If this virtual machine is not in use, press the “Take Ownership” button to obtain ownership of it. Otherwise, press the “Cancel” button to avoid damaging it.
对话框
原因：之前强制关掉虚拟机了，配置文件还没来得及跟新
解决：搜索虚拟机配置路径，搜索所有.lck文件，全部删除
重新启动每个虚拟机即可。
