[系统运维]centos8安装宝塔失败

提示错误：

[root@iZ2ze1e3u7m7oe426pyndaa ~]# yum install net-tools -y
CentOS-8 - AppStream                                                                                                                                                        7.9 kB/s | 2.3 kB     00:00    
Errors during downloading metadata for repository 'AppStream':
  - Status code: 404 for http://mirrors.cloud.aliyuncs.com/centos/8/AppStream/x86_64/os/repodata/repomd.xml (IP: 100.100.2.148)
Error: Failed to download metadata for repo 'AppStream': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

解决方法：

备份

[root@iZ2ze1e3u7m7oe426pyndaa ~]# cd /etc/yum.repos.d/
[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# ll

[[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# mkdir /home/ydt/yum.repos.d.ori
[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# cp * /home/ydt/yum.repos.d.ori/
[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# ll /home/ydt/yum.repos.d.ori/

清空yum源配置文件

[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# rm -rf *

下载新的阿里云镜像源

[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo

生成缓存

[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# yum makecache

[root@iZ2ze1e3u7m7oe426pyndaa yum.repos.d]# ll