centos8报错：Errors during downloading metadata for repository ‘base‘

1. Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/CentOS-Base.repo; 配置：ID 为 "failovermethod" 的 OptionBinding 不存在
   
2. Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/CentOS-Base.repo; 配置：ID 为 "failovermethod" 的 OptionBinding 不存在
   
3. Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/CentOS-Base.repo; 配置：ID 为 "failovermethod" 的 OptionBinding 不存在
   
4. Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/CentOS-Base.repo; 配置：ID 为 "failovermethod" 的 OptionBinding 不存在
   
5. Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/CentOS-Base.repo; 配置：ID 为 "failovermethod" 的 OptionBinding 不存在
   
6. CentOS-8 - Base - mirrors.aliyun.com                      0.0  B/s |   0  B     00:47   
   
7. Errors during downloading metadata for repository 'base':
   
8.   - Status code: 404 for https://mirrors.aliyun.com/centos/8/BaseOS/x86_64/os/repodata/repomd.xml (IP: 120.39.197.216)
   
9.   - Curl error (7): Couldn't connect to server for http://mirrors.aliyuncs.com/centos/8/BaseOS/x86_64/os/repodata/repomd.xml [Failed to connect to mirrors.aliyuncs.com port 80: 拒绝连接]
   
10. 错误：为仓库 'base' 下载元数据失败 : Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
    

复制代码

是因为我之前配置阿里云镜像指令错了，以前是这样的：

1. wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
   

复制代码

解决办法

1. # 进入yum目录
   
2. cd /etc/yum.repos.d
   
3. 
   
4. # 删除目录下所有文件(注意完整复制，不要漏了那个点)
   
5. rm -rf ./*
   
6. 
   
7. # 安装正确的源
   
8. wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
   
9. 
   
10. # 生成缓存
    
11. yum makecache

复制代码