Hello, I tried to create freeradius rpm following the tuto but got following error Code: warning: user mockbuild does not exist - using root warning: group mockbuild does not exist - using root when enterring command " rpm -Uvh freeradius-2.1.1-6.fc10.src.rpm " For info " freeradius-2.1.1-6.fc10.src.rpm " was stored in /home or /tmp . Cent0s install is a VMWare image "The perfect Server - CentOS 5.2" and all required packages are installed Searching for mockbuild on the net gave me so many different (and not working" solution I prefer asking for help here Great thanks for your help. Camomille