yum默认连接的仍是国外的镜像,速度相对不理想,配置成国内的镜像会快不少,这里以阿里镜像为例进行配置:缓存
CentOS系统更换软件安装源.net
base源
第一步:备份你的原镜像文件,以避免出错后能够恢复。
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
第二步:下载新的CentOS-Base.repo 到/etc/yum.repos.d/
CentOS 5
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
CentOS 6
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repoblog
CentOS 7
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repoget
epel源博客
Epel 5
wget -O /etc/yum.repos.d/epel-5.repo http://mirrors.aliyun.com/repo/Cepel-5.repo
Epel 6
wget -O /etc/yum.repos.d/epel-6.repo http://mirrors.aliyun.com/repo/epel-6.repo软件
Epel 7
wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo配置
第三步:运行yum makecache生成缓存下载
yum clean all
yum makecacheyum
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