CentOS8配置阿里雲yum源

一、進入到yum源相應的目錄
cd /etc/yum.repos.d/
二、建立備份目錄，把相應的文件進行備份
mkdir bak
mv * bak/
三、編輯配置CentOS-Base.repo文件

[root@localhost yum.repos.d]# cat CentOS-Base.repo 
# file: /etc/yum.repos.d/CentOS-AppStream.repo
[aliyun-AppStream]
name=CentOS-$releasever - AppStream
baseurl=http://mirrors.aliyun.com/centos/$releasever/AppStream/$basearch/os/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
# file: /etc/yum.repos.d/CentOS-Base.repo
[aliyun-BaseOS]
name=CentOS-$releasever - Base
baseurl=http://mirrors.aliyun.com/centos/$releasever/BaseOS/$basearch/os/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial

[aliyun-extras]
name=CentOS-$releasever - Extras
baseurl=https://mirrors.aliyun.com/centos/8.0.1905/extras/x86_64/os/
enabled=1
gpgcheck=1

四、安裝epel-release源
dnf -y install epel-release
五、清yum緩存，從新加載

dnf clear all
dnf makecache
dnf repolist