Issue was incorrect GPG public key...resolved, thanks! Robert P. Gordon wrote... It looks like you're missing a GPG public key for the listed packages... CJG adds... To install a new GPG public key the complete process is the following: wget http://ATrpms.net/RPM-GPG-KEY.atrpms rpm --import RPM-GPG-KEY.atrpms assuming of course that you are using the ATrpms mirror - substitute your own as required. Regards Cormac