I just recently got a Motorola Droid Razr and was disappointed to find out that the rooting apps and guides out there were not working. So I created a quick one myself. It is self contained and will only run on Linux but I figured I would make it available to everyone.
It uses the motofail exploit.
Download Link: http://www.djlactose.com/Root_Razr.tgz
1.01 – Updated to make the run script executable and updated it to pause after each reboot.
1.00 – Initial Release