[root@server ~]# db yum_repositories show centos-testingcentos-testing=repository BaseURL=http://dev.centos.org/centos/4/testing/i386/ GPGCheck=yes GPGKey=http://dev.centos.org/centos/RPM-GPG-KEY-CentOS-testing Name=CentOS - testing Visible=yes status=disabled[root@server ~]# yum --enablerepo=centos-testing install ruby ruby-libs ruby-devel ruby-mysql ruby-ri ruby-postgres ruby-rdoc ruby-docsLoading "installonlyn" pluginLoading "fastestmirror" pluginLoading "smeserver" pluginLoading "protect-packages" pluginSetting up Install ProcessSetting up repositoriesLoading mirror speeds from cached hostfileReading repository metadata in from local filesParsing package install argumentsNo Match for argument: rubyNo Match for argument: ruby-libsNo Match for argument: ruby-develNo Match for argument: ruby-mysqlNo Match for argument: ruby-riNo Match for argument: ruby-postgresNo Match for argument: ruby-rdocNo Match for argument: ruby-docsNothing to do