7

I have installed Ubuntu 19.10 Server on my Raspberry Pi 4. This seems to be working mostly fine but I am unsure how to connect to WiFi through it's terminal-only interface.

I've seen a few instructions on various articles and forums but they all seem to be reliant on downloading things to do the job, which I can't do without WiFi.

Does anyone have any suggestions?

Thanks!

4
  • This is a bit vague. Ubuntu should have nmcli preinstalled - is it?. How do you currently access it? Do you want to set it up in the running system or change config files when accessing the flash drive from another PC? – FelixJN Nov 4 '19 at 14:24
  • nmcli was not pre-installed unfortunately. This was a completely fresh OS installation so I have not accessed wifi on it before. Changing config files from another computer would probably be preferred. However, I have now resorted to plugging into the router. It would be interesting to understand how to connect to wifi from the command line without plugging in for the future though :) – Pyy Nov 5 '19 at 15:30
  • linuxbabe.com/ubuntu/… - this article helped me. – tysonite Jan 25 '20 at 18:25
  • iwconfig and lots of other tools from the "linuxbabe" article are not installed in RPI image – Josefine Feb 9 '20 at 5:28
11

You should check the netplan program, available at least since ubuntu bionic 18.04, and also included on the base image.

For the wireless configuration, you may follow the example:

/usr/share/doc/netplan/examples/wireless.yaml

Probably you want to enable the dhcp configuration and remove the static parts. Just copy the example to the /etc/netplan/ directory and edit it, so it may looks like this:

network:
  version: 2
  wifis:
    wlan0:
      dhcp4: yes
      dhcp6: no
      access-points:
        "<your network ESSID>":
          password: "<your wifi password>"

Later you execute the netplan with:

sudo netplan try
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  • 1
    Thanks for sharing the knowledge. I use this way to enable wifi for installing ubuntu 19.10 on a respberry pi 4. It works smoothly :) – r0ng Jan 23 '20 at 7:09
  • Would you happen to know how to do it without keyboard and screen? For raspbian you just add wpa_supplicant.conf but it doesn't seem to work with Ubuntu. – dzh Mar 29 '20 at 12:13

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