Install binary rpm package you just built with sudo command: [tchung@localhost SPECS]$ sudo rpm -Uvh /home/tchung/rpmbuild/RPMS/i386/flash-plugin-6.0.79-fc1.i386.rpm Preparing... ########################################### [100%] 1:flash-plugin ########################################### [100%] If you see following error, install compat-libstdc++ by typing 'yum install compat-libstdc++' then try it again. error: Failed dependencies: compat-libstdc++ >= 7.3-2.96.118 is needed by flash-plugin-6.0.79-fc1