查看当前系统下的yum源 [root@localhost ~]# rpm -qa |grep yum yum-3.4.3-150.el7.noarch yum-utils-1.1.31-40.el7.noarch yum-langpacks-0.4.2-7.el7.noarch PackageKit-yum-1.0.7-6.el7.x86_64 yum-rhn-plugin-2.0.1-6.el7.noarch yum-metadata-parser-1.1.4-10.el7.x86_64 [r