也適用於其他版本的redhat

只需做3步操作：

第1步：建立檔案/etc/yum.repos.d/rhel-debuginfo.repo並寫入

[base] name=CentOS-$releasever - Base baseurl=http://mirrors.163.com/centos/7/os/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/7/os/x86_64/RPM-GPG-KEY-CentOS-7

#released updates [updates] name=CentOS-$releasever - Updates baseurl=http://mirrors.163.com/centos/7/updates/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/7/os/x86_64/RPM-GPG-KEY-CentOS-7

[extras] name=CentOS-$releasever - Extras baseurl=http://mirrors.163.com/centos/7/extras//$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/7/os/x86_64/RPM-GPG-KEY-CentOS-7

[centosplus] name=CentOS-$releasever - Plus baseurl=http://mirrors.163.com/centos/7/centosplus//$basearch/ gpgcheck=1 enabled=0 第2步：

     yum clean all 

    yum update  

配置完畢！

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注意如果是其他版本，只需要找到對應的映象就可以裡：

例如 redhat 6.7

[base] name=CentOS-$releasever - Base baseurl=http://mirrors.163.com/centos/6/os/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6 

#released updates [updates] name=CentOS-$releasever - Updates baseurl=http://mirrors.163.com/centos/6/updates/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6 

[extras] name=CentOS-$releasever - Extras baseurl=http://mirrors.163.com/centos/6/extras//$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6 

[centosplus] name=CentOS-$releasever - Plus baseurl=http://mirrors.163.com/centos/6/centosplus//$basearch/ gpgcheck=1 enabled=0