uname -a
Дальше качаем репозитории в зависимости от архитектуры! (либо i386 либо x86_64)
epel
rpm -ihv http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm rpm -ihv http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
CentALT
rpm -ihv http://centos.alt.ru/repository/centos/5/i386/centalt-release-5-3.noarch.rpm rpm -ihv http://centos.alt.ru/repository/centos/5/x86_64/centalt-release-5-3.noarch.rpm
RpmForge (dag)
rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.i386.rpm rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm