Raspberry Pi WiFi Setup

I just recently ordered a Raspberry Pi Model B+ (yay!) and ordered an Edimax EW-7811Un WiFi dongle to go with it. Here's how to set it up on Raspbian.

1. Make your /etc/network/interfaces look like this:

   auto lo
   
   iface lo inet loopback
   iface eth0 inet dhcp
   
   allow-hotplug wlan0
   iface wlan0 inet manual
   wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
   iface default inet dhcp
   

2. Make your /etc/wpa_supplicant/wpa_supplicant.conf look like this:

   ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
   update_config=1
   
   network={
   ssid="whyfi"
   psk="yourpassword"
   }
   

3. sudo ifdown wlan0

4. sudo ifup wlan

This assumes everything will work for you the way it did for me. My network is a WPA2-Personal network and only setting said and psk with wpa_supplicant did the job.