Install Asterisk error

When I install Asterisknow1.7.1-32.iso by CD rom, I occurred the problem show as below.

The screen show:
Error
An error occurred trying to format VOLGroup00/LogVOLoo. This problem is serious and install cannet continue.

Can you help for what is solve the problem.

Thank you very much.

Paul

This is not the AsteriskNow sub-forum.

The initial presumption for that error message would be that you need to replace your faulty disk, but more details of the error may indicate a configuration problem.