进入cd /etc/yum.repos.d/路径下
对文件进行重命名备份
rename '.repo' '.repo.bak' /etc/yum.repos.d/*.repo
新建一个bak文件夹
mkdir bak
.bak文件移动到bak文件夹下
mv *.bak /etc/yum.repos.d/bak
下载最新的repo文件
wget https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo -O /etc/yum.repos.d/Centos-vault-8.5.2111.repo
wget https://mirrors.aliyun.com/repo/epel-archive-8.repo -O /etc/yum.repos.d/epel-archive-8.repo
替换repo文件中的链接
sed -i 's/mirrors.cloud.aliyuncs.com/url_tmp/g' /etc/yum.repos.d/Centos-vault-8.5.2111.repo && sed -i 's/mirrors.aliyun.com/mirrors.cloud.aliyuncs.com/g' /etc/yum.repos.d/Centos-vault-8.5.2111.repo && sed -i 's/url_tmp/mirrors.aliyun.com/g' /etc/yum.repos.d/Centos-vault-8.5.2111.repo
sed -i 's/mirrors.aliyun.com/mirrors.cloud.aliyuncs.com/g' /etc/yum.repos.d/epel-archive-8.repo
重新创建缓存,若没报错,则正常了
yum clean all && yum makecache
