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                大家都知道Centos8于2021年年底停止了服務,大家再在使用yum源安裝時候,出現下面錯誤“錯誤:Failed to download metadata for repo ‘AppStream’: Cannot prepare internal mirrorlist: No URLs in mirrorlist” 1、進入yum的repos目錄 ``` cd /etc/yum.repos.d/ ``` 2、修改所有的CentOS文件內容 ``` sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-* sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-* ``` 3、更新yum源為阿里鏡像 ``` wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo yum clean all yum makecache ``` 4、yum安裝測試是否可以yum安裝 ``` yum install wget –y ``` 這個問題解決花了半個小時,越來越討厭那些嗶嗶半天講不到點上的了。教程能用就能用,不能用就是過期了,一些 debug 的文章非要繞來繞去繞來繞去。
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