As with any other Android device, root is eventually achieved. The Motorola DROID RAZR M, RAZR i, RAZR HD and Atrix HD have all received root thanks to XDA user djrbliss. The process that exploits root in these devices is called Motofail2Go and is a virtual one-click root process.
You’ll need a Windows PC, Motorola’s latest USB drivers and the program itself. If you’re brave and willing to give this a shot then head on over to the source link for instructions and more information regarding this rooting process.