Kick start install CentOS 6.5 Install Problem Unable to read group information from repositories.

I have recently installed CentOS 6.5 on a couple of computers, once without any problems and once with a fatal hang during install.  With both installs I chose to overwrite any existing partitions and use the whole hard-drive.The problem during the failed install happened as the new partitions were being created. An error window including ‘Unable to read group information from repositories’ had a Retry button that did nothing. Google was no help (other than to say it might be a DVD read problem) but with some persistence I found a straight-forward solution.

If you get this error, power off the computer then start the installation process again. This time choose to overwrite an existing installation and CentOS will install without this problem recurring.