Centos8 安装软件 Failed to synchronize cache for repo 'AppStream', ignoring this repo.

问题：Centos8 安装软件出现

 

CentOS-8 - AppStream 28 B/s | 38 B 00:01 
CentOS-8 - Base 111 B/s | 38 B 00:00 
CentOS-8 - Extras 114 B/s | 38 B 00:00 
Failed to synchronize cache for repo 'AppStream', ignoring this repo.
Failed to synchronize cache for repo 'BaseOS', ignoring this repo.
Failed to synchronize cache for repo 'extras', ignoring this repo.
No matches found.

 

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解决方案：找到配置文件打开 /etc/yum.repos.d 修改baseurl 为阿里云的地址 。

cd /etc/yum.repos.d

vi CentOS-Base.repo

## 修改为如下内容

CentOS-Base.repo [BaseOS] name=CentOS-$releasever - Base baseurl=https://mirrors.aliyun.com/centos/$releasever/BaseOS/$basearch/os/

gpgcheck=1

enabled=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial

vi CentOS-AppStream.repo

## CentOS-AppStream.repo [AppStream] name=CentOS-$releasever - AppStream baseurl=https://mirrors.aliyun.com/centos/$releasever/AppStream/$basearch/os/

gpgcheck=1

enabled=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial

 

修改完之后执行 dnf命令或者yum 命令都可以

dnf clean all # 清除所有的缓存文件

dnf makecache # 制作元数据缓存

 

参考链接：https://my.oschina.net/u/930279/blog/3112152/print