Linux yum源配置问题

各位大师：
[root@dragon002 mnt]# yum install telnet
Loaded plugins: fastestmirror, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Loading mirror speeds from cached hostfile
rhel-source | 3.9 kB 00:00 ...
file:///mnt/repodata/repomd.xml: [Errno -1] Error importing repomd.xml for rhel-source: Damaged repomd.xml file
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: rhel-source. Please verify its path and try again
[root@dragon002 mnt]#
这是什么问题啊，求解，多谢！！！

使用yum安装远程加载插件：fastestmirror、产品ID、订阅管理系统未注册到红帽订阅管理。您可以使用订阅管理器注册。
换个yum源，可以用本地镜像的源，centos的，或者是epel源

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