更新yum源

cd /etc/yum.repos.d

备份一下原来的yum源

mv CentOS-Base.repo CentOS-Base.repo.bk

下载新的CentOS-Base.repo 到/etc/yum.repos.d/ 如下的源用一个就好,三条命令选其一

//更新为阿里云的源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
 
//更新为163的源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS6-Base-163.repo
 
//更新为搜狐的源
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.sohu.com/help/CentOS-Base-sohu.repo

运行yum makecache生成缓存

yum clean all
yum makecache

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