• goto http://www.ralinktech.com
  (actual drive page: http://www.ralinktech.com/en/04_support/support.php?sn=501
• Download the RT5370 usb driver and extract on desktop
• Open Terminal

sudo apt-get install build-essential
sudo su
make
make install
modprobe rt5370sta
exit

- or -

sudo apt-get install build-essential
sudo su
make clean
make
modprobe -r rt5370sta
modprobe rt5370sta
exit

Did something wrong on EC2? dont panic. If you have a snapshot of the EC2 EBS (Elastic Block Store), you can easily restore this in under 2 minutes.

• Goto your snapshots and create a volume from the snapshot
• Go to the instance and stop the instance running
• Detach the EBS from the instance
• Attach the new volume to the instance, make sure its /dev/sta1
• Now reinitiate the instance
• If you have an elastic IP, now you can relink this ip to your instance