Setup pi before first boot

Question

I was wondering whether it was technically possible to install wireless connections for WiFi and Bluetooth (f.ex on a raspberry pi 3) before burning the image to the micro SD card. So you would manipulate the (raspbian) image before you insert the SD card into your Pi.

Answer 1

I know it's possible for Wi-Fi. You need to mount the SD card and edit /etc/network/interfaces.

You should edit the file to look something like this:

auto lo 
iface lo inet loopback
iface eth0 inet dhcp 

allow-hotplug wlan0
auto wlan0 iface 

wlan0 inet dhcp
    wpa-ssid "SSID" 
    wpa-psk "password"

Fill in your SSID and password (keep the quotes!)