CentOS 8中 更新或下载时报错：为仓库 ‘appstream‘ 下载元数据失败 : Cannot prepare internal mirrorlist
1 | https://blog.csdn.net/lxcw_sir/article/details/140185068 |
报错信息如下:
1 2 3 4 5 | [root@localhost ~]# yum update -y CentOS-8 - AppStream 0.0 B/s | 0 B 00:00 Errors during downloading metadata for repository 'AppStream': - Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=AppStream&infra=stock [Could not resolve host: mirrorlist.centos.org] Error: Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: Curl error (6): Couldn't resolve host name for http://mirrorlist.centos.org/?release=8&arch=x86_64&repo=AppStream&infra=stock [Could not resolve host: mirrorlist.centos.org] |
原因 ： CentOS Linux 8已于 2021年12月31日停止更新和维护，由于CentOS 团队从官方镜像中移除CentOS 8的所有包，所以在使用yum源安装或更新会报上述失败错误。
解决办法:
1. 进入仓库源文件夹下
1 | cd /etc/yum.repos.d/ |
2. 修改镜像配置内容
1 2 | 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. 清空原有缓存，并重新生成
1 | yum clean all && yum makecache |
4. 更新软件包
1 | yum update -y |
