Linux 7 启动网络Failed to start LSB: Bring up/down networking. 解决方法
作者:
dave
在Redhat 7.6 系统中启动网络失败:
[root@www.cndba.cn~]# systemctl start network.service
Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.
[root@www.cndba.cn~]# 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 日 2019-12-29 21:08:02 CST; 18s ago
Docs: man:systemd-sysv-generator(8)
Process: 19628 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)
12月 29 21:08:02 dw8_monitor network[19628]: RTNETLINK answers: File exists
12月 29 21:08:02 dw8_monitor network[19628]: RTNETLINK answers: File exists
12月 29 21:08:02 dw8_monitor network[19628]: RTNETLINK answers: File exists
12月 29 21:08:02 dw8_monitor network[19628]: RTNETLINK answers: File exists
12月 29 21:08:02 dw8_monitor network[19628]: RTNETLINK answers: File exists
12月 29 21:08:02 dw8_monitor network[19628]: RTNETLINK answers: File exists
12月 29 21:08:02 dw8_monitor systemd[1]: network.service: control process exited, code=exited status=1
12月 29 21:08:02 dw8_monitor systemd[1]: Failed to start LSB: Bring up/down networking.
12月 29 21:08:02 dw8_monitor systemd[1]: Unit network.service entered failed state.
12月 29 21:08:02 dw8_monitor systemd[1]: network.service failed.
提示Failed to start LSB: Bring up/down networking. 的错误。 解决方法就是禁用 NetworkManager:
[root@www.cndba.cn~]# systemctl stop NetworkManager
[root@www.cndba.cn~]# 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.
Removed symlink /etc/systemd/system/network-online.target.wants/NetworkManager-wait-online.service.
在重启网络恢复正常:
[root@www.cndba.cn~]# systemctl restart network
[root@www.cndba.cn~]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.74.110 netmask 255.255.255.128 broadcast 192.168.74.127
inet6 fe80::20c:29ff:fec0:2b02 prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:c0:2b:02 txqueuelen 1000 (Ethernet)
RX packets 11 bytes 1012 (1012.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 28 bytes 4388 (4.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens34: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.222.110 netmask 255.255.255.128 broadcast 192.168.222.127
inet6 fe80::20c:29ff:fec0:2b0c prefixlen 64 scopeid 0x20<link>
ether 00:0c:29:c0:2b:0c txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 23 bytes 3511 (3.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 212 bytes 16436 (16.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 212 bytes 16436 (16.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:2a:24:af txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@www.cndba.cn~]#
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