此处为更改系统yum源为国内的阿里云的镜像地址。方法如下:
1、备份系统yum源以免出错,方便还原:
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
2、下载CentOS-Base.repo到/etc/yum.repos.d下:
Centos5版本yum源:
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
Centos6版本yum源:
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
Centos7版本yum源:
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
3、清理并重建缓存:
yum clean all yum makecache