修改yum源為阿里雲的

將Centos的yum源更換為國內的阿里雲源

author：headsen chen

date：2018-04-28  13:33:41 

1、備份

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

2、下載新的CentOS-Base.repo 到/etc/yum.repos.d/

 CentOS  5  （目前已經停用了，無效）

  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.repo

CentOS 7

 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

centos 8

     wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo

3、之后運行yum makecache生成緩存

   yum clean all

   yum makecache

4、查詢

   yum repolist

5、自動修改yum源腳本

 

#!/bin/bash
mv /etc/yum.repos.d/* /mnt
a=`cat /etc/redhat-release |awk '{print $3}'|awk -F . '{print $1}'`
if [ $a == 6 ];then
   wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
else
   wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
fi
yum clean all
yum makecache