CentOS7 换源与禁用

Could not retrieve mirrorlist http://mirrorlist.centos.org?arch=x86_64&release=7&repo=sclo-rh error was 14: HTTP Error 502 - Bad Gateway

CentOS7 官方已经停止维护，需要替换到默认源

https://www.cnblogs.com/kohler21/p/18331060

方法

sudo bash

cd /etc/yum.repos.d/

mv CentOS-Base.repo CentOS-Base.repo_bak

wget -O CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

grep -r "http://mirrorlist.centos.org?a" ./ 查找所有可能存在的默认源

打开，修改 enable = 0，或者删除

yum repolist all 查看信息

yun clean all

然后安装所需文件

可以运行

rpm -qa | grep XXXX

查看安装状态