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                ## 一、概述 服務器上yum安裝,是從yum源去尋找安裝包,有時候,云服務器的源可能會導致無法正常安裝軟件; 如問題: ![](https://img.kancloud.cn/83/57/835755770bfaa565fc59ff534d82da5e_1586x121.png) 解決辦法是更換可用的YUM源; ## 二、配置YUM鏡像 查看 ``` cd /etc/yum.repos.d ``` ![](https://img.kancloud.cn/fa/93/fa93b00a049f1cbba0b127cd96d4ce1f_1597x150.png) 備份 ``` mkdir backup mv * backup/ ``` 更換: ``` curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo ``` 清理: ``` yum clean all ``` 更新緩存: ``` yum makecache ```
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