network服务无法启动问题解决

报错为：Failed to start LSB: Bring up/down networking.

journalctl -xe

 dhclient(23400) is already running - exiting.

参见：https://www.ibadboy.net/archives/1714.html

ps -ef | grep dhclient

找到进程后杀掉进程。

 检查是否是虚拟机网卡选错了。