Errors during downloading metadata for repository ‘AppStream‘

1.1 备份

备份 repo 文件

rename '.repo' '.repo.bak' /etc/yum.repos.d/*.repo

1.2 下载

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

1.3 运行

替换 repo 中的连接

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

1.4 缓存

从新创建缓存

yum clean all && yum makecache

1.5 注意

如果从装了系统，需要清除本地 SSH 协议

ssh-keygen -R "服务器地址"

转载为：https://blog.csdn.net/qq_44831808/article/details/123644378

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