报错:
failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try.
http://mirrors.163.com/centos/$releasever/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
1.备份
cp /etc/yum.repos.d/CentOS-Base.repo CentOS-Base.repo.bak
2.下载阿里云的源
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
3.更新缓存
yum clean all
yum makecache
文章讲述了在遇到CentOS镜像源错误(repomd.xml404)时,如何通过备份原有源文件、替换为阿里云镜像源以及执行清理和更新缓存的操作来解决问题。
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