August 08, 2018

WiFi on a headless Raspberry Pi

I have no idea why the other guides for this take four pages.

sudo su
wpa_passphrase YOUR_SSID

You’ll then be asked to enter the passphrase and confirm the passphrase. If they match; you’ll see a blurb that’s a config file fragment.

Good.

Now (still as su) repeat the last step, but pipe-append the output to the supplicant file.

wpa_passphrase YOUR_SSID >> /etc/wpa_supplicant/wpa_supplicant.conf

You won’t see the instructions this time - but that’s okay. There are just two things left to do;

remove the plain text password from the supplicant file
add scan_ssid=1 so that it can find the network when it’s hidden
```
sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
```

Finally; reboot and run something like sudo apt-get update to test it all.