Restart error "Failed to start LSB: Bring up/down networking" after configuring openvswitch with opennebula

Question

I configured ovs-br0 openvswitch from physical port ens1f1, but then after restarting the network, I encountered an error Failed to start LSB: Bring up / down networking. enter image description here

ip add

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Please. Can you help me!

Answer 1

Your server looks to be an RHEL/CentOS 7 one. Check if the file /etc/sysconfig/network exists on the server, if not just simply create one with touch command and try restarting or checking status post that.

touch /etc/sysconfig/network

Answer 2

I had similar after rebooting my CentOs 7. First needed to see what was going on:

journalctl -u network.service

For me it was:

Bringing up interface enp2s0f0:  Error: Connection activation failed: No suitable device found for this connection (device eth0 not available because profile is not compatible with device (permanent MAC address doesn't match)).

Then I go to /etc/sysconfig/network-scripts I noticed existence of some files like ifcfg-* , I deleted them, I have only left ifcg-eth0

Then I tried again

systemctl restart network

and it has started

 network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
   Active: active (exited) since Fri 2023-11-03 00:01:11 CET; 10min ago
     Docs: man:systemd-sysv-generator(8)