1.确保RHEL5中已经安装了yum [root@lvs-master ~]# rpm -qa |grep yumyum-metadata-parser-1.1.2-3.el5yum-updatesd-0.9-2.el5yum-3.2.22-26.el5yum-security-1.1.16-13.el5yum-rhn-plugin-0.5.4-15.el5 2.……
