1、将麒麟的yum源备份。
mv kylin_x86_64.repo /tmp/
2、将阿里云开源镜像站的centos8的yum源,下载到麒麟的服务器下并重新加载。
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
yum clean all && yum makecache