CentOS8使用putty安装MySQL时搜不到（无法下载）元数据，报Errors during downloading metadata for repository ‘epel‘:

深藏阁楼爱情的钟 2023-09-29 10:54 35阅读 0赞

CentOS8使用putty安装MySQL时搜不到（无法下载）元数据，

报Errors during downloading metadata for repository 'epel': - Status code: 404 for http://archives.fedoraproject.org/pub/archive/epel/8/Everything/x86\_64/repodata/repomd.xml等错误，具体如下：

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16][]

**这可能是配置yum源的问题，需要切换源**

![70b373484a7d486aa43f1c0ee1aad7dd.png][]

> #### 正确解决流程可以参考下面链接博主的步骤： ####
> 
> [【完美解决】【Centos8】Linux 为 repo ‘AppStream‘ 下载元数据失败、Could not resolve host: mirrors.cloud.aliyuncs.com\_AspirinZjh的博客-CSDN博客][Centos8_Linux _ repo _AppStream_ _Could not resolve host_ mirrors.cloud.aliyuncs.com_AspirinZjh_-CSDN]

在这里对其执行过程简单介绍：

运行以下命令备份之前的repo文件。  
rename '.repo' '.repo.bak' /etc/yum.repos.d/\*.repo

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16 1][]

运行以下命令下载最新的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

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16 2][]

运行以下命令替换repo文件中的链接，就是这一步出错了，官方提供的命令：

1、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

2、sed -i 's/mirrors.aliyun.com/mirrors.cloud.aliyuncs.com/g' /etc/yum.repos.d/epel-archive-8.repo

http://mirrors.cloud.aliyuncs.com需要替换为http://mirrors.aliyun.com，但是官方提供的命令没替换完，如果有执行官方提供的命令还是不行的话执行下面的命令：

sed -i 's/mirrors.cloud.aliyuncs.com/mirrors.aliyun.com/g' /etc/yum.repos.d/Centos-vault-8.5.2111.repo  
sed -i 's/mirrors.cloud.aliyuncs.com/mirrors.aliyun.com/g' /etc/yum.repos.d/epel-archive-8.repo  
![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16 3][]

运行以下命令重新创建缓存  
yum clean all && yum makecache

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_11_color_FFFFFF_t_70_g_se_x_16][]

执行成果，yum install也可以正常使用了

[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/3686289cf16549319c774061c4e43fab.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5pyJ5oSP5oKg5oKg,size_20,color_FFFFFF,t_70,g_se,x_16
[70b373484a7d486aa43f1c0ee1aad7dd.png]: https://img-blog.csdnimg.cn/70b373484a7d486aa43f1c0ee1aad7dd.png
[Centos8_Linux _ repo _AppStream_ _Could not resolve host_ mirrors.cloud.aliyuncs.com_AspirinZjh_-CSDN]: https://blog.csdn.net/qeqpoququtt/article/details/122855846
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16 1]: https://img-blog.csdnimg.cn/f1612d8cfbdd48929eaba90b9a670fd3.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5pyJ5oSP5oKg5oKg,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16 2]: https://img-blog.csdnimg.cn/1aec3fbbb404430f90be3b2b4e2c6b00.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5pyJ5oSP5oKg5oKg,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_20_color_FFFFFF_t_70_g_se_x_16 3]: https://img-blog.csdnimg.cn/1b67090b681e46f6957e3dcf7b05ca0f.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5pyJ5oSP5oKg5oKg,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA5pyJ5oSP5oKg5oKg_size_11_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/84dc7e21a8904a5facc996dbe2a9f576.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA5pyJ5oSP5oKg5oKg,size_11,color_FFFFFF,t_70,g_se,x_16