备份
1 | cd /etc/yum.repos.d/ |
1 | mkdir /home/yum.repos.d |
1 | cp * /home/yum.repos.d/ |
1 | ll /home/yum.repos.d/ |
清空yum 源配置文件
1 | rm -rf /etc/yum.repos.d/* |
下载新的阿里云镜像源
1 | wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.rep |
生成缓存
1 | yum makecache |
