CentOS 更换阿里云更新源

CentOS 8操作系统版本结束了生命周期（EOL），Linux社区已不再维护该操作系统版本。

可参加此文档更新阿里云更新源

参考 centos镜像_centos下载地址_centos安装教程-阿里巴巴开源镜像站

CentOS 8

1.备份更新源

mkdir /root/repoback/
cp /etc/yum.repos.d/* /root/repoback

2.删除更新源配置

rm -rf /etc/yum.repos.d/*

3.安装阿里云镜像源

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo

4.安装阿里云epel镜像源

yum install -y https://mirrors.aliyun.com/epel/epel-release-latest-8.noarch.rpm
sed -i 's|^#baseurl=https://download.example/pub|baseurl=https://mirrors.aliyun.com|' /etc/yum.repos.d/epel*
sed -i 's|^metalink|#metalink|' /etc/yum.repos.d/epel*

CentOS 7

1.备份更新源

mkdir /root/repoback/
cp /etc/yum.repos.d/* /root/repoback

2.删除更新源配置

rm -rf /etc/yum.repos.d/*

3.安装阿里云镜像源

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

4.安装阿里云epel镜像源

wget -O /etc/yum.repos.d/epel.repo https://mirrors.aliyun.com/repo/epel-7.repo