centos7虚拟机 网卡启动失败报错 failed to start LSB Bring up/down

亲自尝试:

　　解决办法: 禁用NetworkManager

1、禁用NetworkManager服务
systemctl stop NetworkManager

2、永久关闭NetworkManager服务
systemctl disable NetworkManager

　　最后重启网卡，会发现可以正常启动并且可以ping通。

systemctl restart network

　　

尝试查询状态并ping 百度

systemctl status network

[root@localhost] ping 114.114.114.114
PING 114.114.114.114 (114.114.114.114) 56(84) bytes of data.
64 bytes from 114.114.114.114: icmp_seq=1 ttl=128 time=73.8 ms
64 bytes from 114.114.114.114: icmp_seq=2 ttl=128 time=73.4 ms
64 bytes from 114.114.114.114: icmp_seq=3 ttl=128 time=80.5 ms
64 bytes from 114.114.114.114: icmp_seq=4 ttl=128 time=57.3 ms
64 bytes from 114.114.114.114: icmp_seq=5 ttl=128 time=68.6 ms
64 bytes from 114.114.114.114: icmp_seq=6 ttl=128 time=67.9 ms