yum配置

RHCL8无法使用yuminstall的解决方法
http://www.360doc.com/content/23/0706/11/79641151_1087531039.shtml

centos8 安装yum
https://www.jianshu.com/p/5e6746f00d17

CentOS8.5安装yum
https://www.cnblogs.com/kl-22510/p/16543939.html

yum安装报错：
https://www.cnblogs.com/vless/p/18064787

2023年redhat8、centos8使用阿里源配置YUM更新源
https://zhuanlan.zhihu.com/p/464296947