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Headless Raspberry Pi setup with wifi

14 March 2017

Once in a while want to setup a new Raspberry Pi without the need to connect it to a display, keyboard or ethernet cable. The Raspberry Pi 3 and the recently introduced Raspberry Pi Zero W have an onboard wifi chip. This means it can run and connect to the internet without having an ethernet cable connected to it. I wrote this article mainly for myself so i can reproduce the steps, but figured this is probably useful to others.

This article will get you up and running with a Raspberry Pi, connected to your wifi network and accessible over ssh, without ever needing to connect anything to it, besides power.

Note 1: I used a Mac when going through the process. Most of the steps are probably almost the same on other operating systems.

Note 2: I am using the Raspbian Jessie Lite image which does not have any graphical interface besides the commandline. This guide may also work for the Jessie image with the Pixel desktop, however, i did not verify this.


  • Raspberry Pi with integrated wifi chip - Pi 3 or Pi Zero W
  • Compatible micro SD card - at least 4GB
  • Power source for the Raspberry Pi
  • A wifi access point you want to connect the Pi to

Prepare SD card with Raspbian jessie lite

Get a Raspbian Jessie lite image. Download the latest Raspbian LITE image from the official Raspberry Pi website. Extract the downloaded zip file (double click). You will now have a .img file. In my case it is called 2017-02-16-raspbian-jessie-lite.img.

Connect you SD card to your computer and use Etcher to flash the Raspbian .img-file to the SD card. The selected device will be fully erased!


You now have a standard Raspbian image which is ready to boot, but not yet ready to fully work headless!

Configure ssh and wifi

After flashing the image to the SD card, the drive has been ejected. Disconnect and connect the SD card so it gets detected by macOS again. A boot drive should appear. Open a terminal window and cd to the boot drive using the following command:

$ cd /Volumes/boot

Enable ssh

By default, a clean Raspbian image will have ssh disabled. You would need to boot the system, connect a keyboard and display to the Pi and enable ssh. This step will enable ssh at first boot.

In the boot drive, create a file called ssh. Just an empty file with exactly that name.

$ touch ssh

This will enable ssh when you Pi boots.

Connect wifi

To make the Pi connect to your Wifi access point at first boot, store the wifi connection details on the Pi’s boot drive.

$ nano wpa_supplicant.conf

Paste the following content in the wpa_supplicant.conf file, adjust it with your wifi details and save it with ctrl + x.


This will use DHCP to obtain an IP address.

First boot and connect with ssh over wifi

The SD card is now ready to boot. Disconnect the SD card from your computer and put it in the Pi.

Connect a power source to the Pi and the boot sequence should begin. If all went well, after about 30 seconds the Pi should be fully booted and connected to your wifi network.

Use a terminal to connect to it over ssh:

$ ssh pi@raspberrypi.local

The default password for the pi-user on a clean Raspbian install is raspberry.

Finishing up

You should be able to connect to the Pi over ssh. Run sudo raspi-config on the Pi to update the packages and configure everything.

Hostname or IP?

If you would like to connect by providing an IP instead of the hostname (maybe because you’re about to change the hostname), use ping to figure out the IP that has been assigned to the Pi and use that when connecting over ssh.

$ ping raspberrypi.local
PING raspberrypi.local ( 56 data bytes

In this case, the IP of the Pi is

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