Centos更换阿里云yum源

1.首先备份

mv /etc/yum.repos.d/CentOS-Base.repo

/etc/yum.repos.d/CentOS-Base.repo.backup

2.获取新的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

或者

curl -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.repo

或者

curl -o /etc/yum.repos.d/CentOS-Base.repo

http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS 7

wget -O /etc/yum.repos.d/CentOS-Base.repo

http://mirrors.aliyun.com/repo/Centos-7.repo

或curl -o /etc/yum.repos.d/CentOS-Base.repo

http://mirrors.aliyun.com/repo/Centos-7.repo

3.添加EPEL

CentOS 6

wget -O /etc/yum.repos.d/epel-6.repo

http://mirrors.aliyun.com/repo/epel-6.repo

CentOS 7

wget -O /etc/yum.repos.d/epel.repo

http://mirrors.aliyun.com/repo/epel-7.repo

4.清理缓存并生成新的缓存

yum clean all

yum makecache

5.查看yum 源，yum repolist。