eth0 ethernet 不受管理

cf: https://superuser.com/questions/1429490/unmanaged-network-manager-in-ubuntu

 

This works for my ubuntu 20.04.3 at pi4.

As root, edit /etc/NetworkManager/NetworkManager.conf to match the following. You can use the command sudo nano /etc/NetworkManager/NetworkManager.conf to do so.

[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true

[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma,except:type:wwan,except:type:ethernet,except:type:vlan

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