Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
报错原因:
Centos8于2021年年底停止了服务,大家再在使用yum源安装时候,出现下面错误“错误:Failed to download metadata for repo ‘AppStream’: Cannot prepare internal mirrorlist: No URLs in mirrorlist”
最终原因是源的问题,解决办法也是解决源的问题。
解决办法如下:
1、进入yum的repos目录
cd /etc/yum.repos.d/
2、修改所有的CentOS文件内容
sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
3、更新yum源为阿里镜像
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo yum clean all yum makecache