[CentOS] Error updating CentOS 6 kernel

I finally was able to create a VM in which to load and "play" with
CentOS 6, and the first time I went to update the kernel I ran into
this:

Downloading Packages:
kernel-2.6.32-71.29.1.el6.x86_64.rpm
      |  22 MB     01:11
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : kernel-2.6.32-71.29.1.el6.x86_64
                         1/1
grubby fatal error: unable to find a suitable template

What does that mean and how do I fix it?