64位系統使用如下命令：
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
rpm -Uhv rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
32位系統使用如下命令:
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.i386.rpm
rpm -Uhv rpmforge-release-0.5.2-2.el5.rf.i386.rpm