How to work with SD card partition?

[Happyhaha2000]

With the WiFi and keyboard on the hub, you can also do these...

sudo raspi-config
- I don't remember exactly, but it's like Networking/WiFi and then you set the country and then your SSID and password.

Then, run
sudo /home/pi/RetroPie-Setup/retropie_setup.sh
- Then Configuration/WiFi
- Then what does it show at the top of the screen?  If you select CONNECT, does it show a list of WiFi routers?

I've just done this, and here's what I got. It shows my IP address now and my SSID, but probably only because I've just entered it. When I hit Connect, I still get the same error. Here's the results for iwconfig without and with the dongle connected.