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Wired Unmanaged

· 1 min

This post is about the Wired Unmanaged problem I encountered when I tried to configure a static IP address for my Ubuntu virtual machine.

When I tried the following guide 虚拟机 Ubuntu 解决静态ip配置问题, I found that the network manager was not working, Like the following picture: Wired Unmanaged This problem is the first time I have seen it. I have configured it many times based on that guide, but I have never encountered this situation. So I went to Google to find a solution to the problem and finally found a solution. I will record it here.

Solution#

  1. Add a missing config file with
Terminal window
sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
  1. Edit the file with
/etc/NetworkManager/NeworkManager.conf
[main]
plugins=ifupdown,keyfile


[ifupdown]
managed=true


[device]
wifi.scan-rand-mac-address=no

change the line managed=false to read managed=true

  1. Restart network manager with
Terminal window
sudo service network-manager restart

Then the network manager will work again. Thanks to Lou Burnard of the solution.


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