虚拟机安装Centos7网卡无法启动

一、错误背景

1、使用VMware安装的centos7.2虚拟机,开机突然不能上网了,报错如下:

错误提示:

执行:#systemctlrestart network.service

Restarting network (via systemctl):  Job fornetwork.service failed because the control process exited with error code. See"systemctl status network.service" and   "journalctl -xe" for details.

2、执行#journalctl –xe报一堆错。

3、查看日志:进一步确认错误

#cat /var/log/message |grep network

二、解决方法:

方法1、通过百度查找答案,大多是mac地址不对,修改mac地址

链接:https://www.cnblogs.com/wudonghang/p/c0cd315470b06ef0f455855fe36c222c.html

截图:

虚拟机安装Centos7网卡无法启动_无法启动

虚拟机安装Centos7网卡无法启动_Centos7_02

方法二:(本次解决问题的方法也属于网上搜索仅供参考)

(1)禁止NetworkManager服务启动,问题解决

#systemctl stop NetworkManager

#systemctl disable NetworkManager

Removed symlink/etc/systemd/system/multi-user.target.wants/NetworkManager.service.

Removed symlink/etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.

Removed symlink/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.

(2)重新启动网络服务

#systemctl  start network.service

正常启动。