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

Version
1.01 – Updated to make the run script executable and updated it to pause after each reboot.
1.00 – Initial Release