1.克隆后查看网卡无法启用，报错信息如下：
Apr 22 15:54:23 agent systemd: network.service: control process exited, code=exited status=1 Apr 22 15:54:23 agent systemd: Failed to start LSB: Bring up/down networking. Apr 22 15:54:23 agent systemd: Unit network.service entered failed state. Apr 22 15:54:23 agent systemd: network.service failed. Apr 22 15:54:25 agent systemd: Starting LSB: Bring up/down networking... Apr 22 15:54:26 agent network: 正在打开环回接口： [ 确定 ] Apr 22 15:54:26 agent network: 正在打开接口 ens33： 错误：激活连接失败：No suitable device found for this connection. Apr 22 15:54:26 agent network: [失败] Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent network: RTNETLINK answers: File exists Apr 22 15:54:26 agent systemd: network.service: control process exited, code=exited status=1 Apr 22 15:54:26 agent systemd: Failed to start LSB: Bring up/down networking. Apr 22 15:54:26 agent systemd: Unit network.service entered failed state. Apr 22 15:54:26 agent systemd: network.service failed. Apr 22 15:55:06 agent systemd: Starting LSB: Bring up/down networking...
2.百度到的大部分信息都是mac地址冲突，进行mac地址修改，mac地址修改后仍无法解决。最后在博客：http://blog.csdn.net/lcalqf/article/details/59069197找到了一个
办法，关闭NetworkManager 套件；
systemctl stop NetworkManager systemctl disable NetworkManager
然后重启下网络服务就可以了：
systemctl start network.service