Network, ethernet device not managed by network-manager

[Stefal]

Describe the bug

With the latest armbian image (24.8.2 RTKBase 2.6.2), the lte_network_mgmt.sh doesn't work, as the eth device is not managed by network-manager

To Reproduce
Steps to reproduce the behavior:

1. Execute sudo lte_network_mgmt.sh -o

it output

Error: Device '' not found.
ERROR: no connection associated with
Error: unknown connection ''.
Error: Device '' not found.
ERROR: no connection associated with
Error: unknown connection ''.

[Stefal]

Since Armbian 24.05 netplan is used. See https://github.com/igorpecovnik/documentation/blob/master/docs/User-Guide_Networking.md

If I want to use NetworkManager, I can edit the renderer value in /etc/netplan/10-dhcp-all-interfaces.yaml to NetworkManager or add a new file, or delete /etc/netplan/10-dhcp-all-interfaces.yaml, or use the netplan set command: https://netplan.readthedocs.io/en/stable/netplan-set/

[Stefal]

Another option could be to use this parameter on the build.sh command : NETWORKING_STACK=network-manager :
https://github.com/armbian/build/blob/cc4513958fb01d0fcdafe96144d2da76bcd51427/lib/functions/configuration/main-config.sh#L64-L79