CentOS 8 reached its end of life at the end of 2021. When using yum repositories for installation, you may encounter the following error:
Solution:
1、Navigate to the "repos" directory of yum.
cd /etc/yum.repos.d/
2、Modify the contents of all CentOS files.
sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
3、Update the yum source to Alibaba Mirror.
yum clean all && yum makecache
yum -y install wget
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
yum -y install epel-release
After switching to the Alibaba Mirror, test if you can successfully use yum to download the desired tools.
