Centos7源报错问题

原因：是因为centos7在024年6月份停止维护，导致默认镜像不能使用，更改镜像即可mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache

参开这个

Loading mirror speeds from cached hostfile Could not retrieve mirrorlist http://mirrorlist.centos.or-CSDN博客