1.Error: Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
摘要：一.问题： centos8 yum 报错 yum Failed to download metadata for repo ‘AppStream’ 二.原因： cd /etc/yum.repos.dvim CentOS-Base.repo base源地址baseurl失效 解决方案： 参考 http
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