关于解决RedHat6.0以上版本:Loaded plugins: product-id, refresh-packagekit, security, subscription-manager

edhat默认自带的yum源需要注册,才能更新,报错:
Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
http://mirrors.163.com/centos/6Server/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - “The requested URL returned error: 404 Not Found”
Trying other mirror.
可替换为centos对应的源。 操作如下:

更换yum源,将原有源删除或备份到别的目下下:
    #cd /etc/yum.repos.d/
    #wget  http://mirrors.163.com/.help/CentOS6-Base-163.repo
   #vi CentOS6-Base-163.repo
    编辑文件,把文件里面的$releasever全部替换为版本号:6(注意,不是6.5!)最后保存!
   :%s/$releasever/6/g 

清除原有缓存,重建缓存:
#yum clean all
#yum makecache

更新系统:
#yum update

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