#更换源
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
yum clean all
yum makecache
 
#升级到stream
dnf install -y centos-release-stream
dnf swap centos-linux-repos centos-stream-repos
dnf distro-sync
#安装php源
rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
rpm -Uvh http://rpms.remirepo.net/enterprise/remi-release-8.rpm
dnf -y install dnf-utils