CentOS8配置yum源

一、配置yum

1、查看看是否存在yum

[root@localhost ~]# rpm -qa|grep yum

yum-langpacks-0.4.2-7.el7.noarch
yum-3.4.3-168.el7.centos.noarch
PackageKit-yum-1.1.10-2.el7.centos.x86_64
yum-utils-1.1.31-54.el7_8.noarch
yum-metadata-parser-1.1.4-10.el7.x86_64
yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch

2、备份/etc/yum.repos.d/CentOS-Base.repo

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

3、下载新的 CentOS-Base.repo 到 /etc/yum.repos.d/

阿里云yum（2024最新yum：https://developer.aliyun.com/mirror/）

centos 8

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

4、清除缓存

yum clean all

5、新建缓存

yum makecache

6、更新yum

yum -y update