I'm trying to use ubuntu OS on my raspberry pi 3 B+.
I have formatted my microSD card to FAT32 and copied the ubuntu-18.04.2-preinstalled-server-arm64+raspi3.img.
I am able to have the OS working. With keyboard and monitor connected, I am able to get to the command line. In fact, the command line is the only thing I see when I turn on my RPi.
But there is not much I can do since no wifi has been configured yet.
I tried to do
sudo iwlist wlan0 scan to scan for network, but I got this message:
sudo: iwlist: command not found
What can I do now?