摘要：
https://blog.csdn.net/Cky079/article/details/84566102 索引:https://www.cnblogs.com/haoxinyue/p/6724365.html 阅读全文
摘要：
执行yum makecache命令报错 CentOS-8 - Base 7.1 B/s | 38 B 00:05 错误：为仓库 'BaseOS' 下载元数据失败 : Cannot prepare internal mirrorlist: No URLs in mirrorlist 执行yum ins 阅读全文