Help with installing Lubuntu on a Raspberry Pi

[jonothon]

Hello,

I am trying to install Lubuntu on my raspberry pi following this post: https://discourse.ubuntu.com/t/lubuntu-25-04-installation-on-raspberry-pi-5/59393

In the last step of switching to network manager, I get the following error and don’t know how to proceed:

-@ubuntu:~$ sudo netplan apply

** (generate:1913): WARNING **: 11:36:49.423: Permissions for /etc/netplan/01-netcfg.yaml are too open. Netplan configuration should NOT be accessible by others.
/etc/netplan/01-netcfg.yaml:2:9: Error in network definition: expected mapping (check indentation)
network:
        ^
-@ubuntu:~$

Can anybody help me to proceed or point me to the right documentation?

[ogra]

to fix the first one (the warning) you should make sure that the file is owned by root.root and only has the rw bits set for the owner …

like:

rw------- 1 root root  ....

The second one points to broken indentation, yaml only allows spaces, do not use tabs and make sure the number of spaces is correct for each block, there are examples at:

https://netplan.readthedocs.io/en/stable/