NetworkManager

Check Items

Check whether NetworkManager of a node is normal.

Solution

Log in to the node and run the systemctl is-active NetworkManager command to obtain the running status of NetworkManager. If the command output is abnormal, run the systemctl restart NetworkManager command and obtain the status again.

If the fault persists, reset the node. For details, see Resetting a Node. Alternatively, contact technical support to restore the file and then perform the upgrade.