Setting up a Headless, WiFi'd Raspberry Pi
Sometimes you just get stuck in situations where you don’t have access to an HDMI port or mouse/keyboard when setting up a raspberry pi. Luckily, there are a good number of solutions at your disposal to install the OS and connect to wifi without any human intervention. This works for any wifi-enabled pi, including ones with wifi over usb.
Obtaining an Image The first step is to obtain an operating system image for your new raspberry pi.