centos7网卡报错解决办法总结(FailedtostartLSB:Bringup/downnetworking)

今天centos7虚拟机启动后，连接工具如法连接，登陆进虚拟机后一看

$ ifconfig
lo: flags=73  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10
        loop  txqueuelen 0  (Local Loopback)
        RX packets 642  bytes 55820 (54.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 642  bytes 55820 (54.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

发现只有这么一个127.0.0.1的IP，配置的静态IP的没了，赶紧看看配置文件发现没问题，

 vi /etc/sysconfig/network-scripts/ifcfg-eno16777736


HWADDR=01:0C:29:A8:B3:BA
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPADDR=192.168.153.11
NETMASK=255.255.255.0
GATEWAY=192.168.153.2
DNS1=8.8.8.8
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eno16777736
UUID=a6f295f5-b70b-48ba-8cc6-a4ba3879181a
ONBOOT=yes

 

，那重启下网卡吧

]# service network restart
Restarting network (via systemctl):  Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.
                                                           [FAILED
]# systemctl status network.service
● network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
   Active: failed (Result: exit-code) since 六 2019-05-25 00:57:31 PDT; 27s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 6646 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)

5月 25 00:57:31 localhost.localdomain network[6646]: RTNETLINK answers: File exists
5月 25 00:57:31 localhost.localdomain network[6646]: RTNETLINK answers: File exists
5月 25 00:57:31 localhost.localdomain network[6646]: RTNETLINK answers: File exists
5月 25 00:57:31 localhost.localdomain network[6646]: RTNETLINK answers: File exists
5月 25 00:57:31 localhost.localdomain network[6646]: RTNETLINK answers: File exists
5月 25 00:57:31 localhost.localdomain network[6646]: RTNETLINK answers: File exists
5月 25 00:57:31 localhost.localdomain systemd[1]: network.service: control process exited, code=exited status=1
5月 25 00:57:31 localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down networking.
5月 25 00:57:31 localhost.localdomain systemd[1]: Unit network.service entered failed state.
5月 25 00:57:31 localhost.localdomain systemd[1]: network.service failed.

咦，报错centos7网卡报错解决办法总结(FailedtostartLSB:Bringup/downnetworking)

问题描述:

我的vm中安装了一台虚拟机centos7,用着用着不知道为什么网络就不能用了.

解决:

查询了一下,好像是系统自带的NetworkManager这个管理套件有关系，关掉.

关掉方法:

systemctl stop NetworkManager

systemctl disable NetworkManager

重新启动网络：

systemctl start network.service

我的问题解决了,但愿你的问题也解决了.

 

最后贴上一些有用的命令:

重启网卡

systemctl restart network

给NetworkManager-wait-online服务设置开机自启动

systemctl enable NetworkManager-wait-online.service

停止关闭NetworkManager

systemctl stop NetworkManager

systemctl disable NetworkManager