1
$ systemctl stop firewalld && systemctl disable firewalld
2
$ setenforce 0
3
$ sed -i 's/SELINUX=.*/SELINUX=disabled/' /etc/selinux/config

1
$ sed -e 's|^mirrorlist=|#mirrorlist=|g' \
2
    -e 's|^#baseurl=http://dl.rockylinux.org/$contentdir|baseurl=https://mirrors.aliyun.com/rockylinux|g' \
3
    -i.bak \
4
    /etc/yum.repos.d/rocky-*.repo
5

6
$ dnf makecache