Installed Ubuntu on Raspberry Pi

You might need to run the following command to install a desktop environment:

tasksel

or

sudo tasksel

.

However, you will need to connect to the internet.

To connect to the internet, run the following commands.

First, edit the following file using the following command:

sudo nano /etc/wpa_supplicant.conf

Make sure the contents look like this and of course you will need to replace ssid_name with the name of the network and password with the actual password!:

network={
            ssid="ssid_name"
             psk="password"
}

Press CTRL + o and then press ENTER to save the file. Press CTRL + x to exit nano.

Then, run the following command:

sudo wpa_supplicant -B -iwlan0 -c/etc/wpa_supplicant.conf -Dwext && sudo dhclient wlan0

Finally, check your network connection by running the following command:

iwconfig

Your ESSID should be listed.

Alternatively, you may be able to connect like this instead:

nmcli d wifi connect <WiFiSSID> password <WiFiPassword> iface wlan0

Again, replace <WifiSSID> with the actual name of the network and replace <WiFiPassword> with the actual password.

Additional info 1

Additional info 2

NOTE: because of a bug in tasksel, DO NOT use tasksel to uninstall packages. ONLY use tasksel to install.