Easy root your Samsung Galaxy Nexus with Galaxy Nexus Root Toolkit 1.0

Process is very easy, and should take less than 20 minutes once you have downloaded and installed the root toolkit. download link for the program here.

Download and install the root toolkit on your computer. run it and you will see the launch screen.Click on the "Drivers + SDK" button. Click on the "Unlock + Root" button, Follow the instructions.

When you are told to wait for the device to boot, wait. 

FULL Step-by-step instruction dan download here, enjoy

http://howto.cnet.com/8301-11310_39-57352473-285/how-to-easily-root-your-galaxy-nexus/