1、在使用统信UOS操作系统时执行 yum install 或 yum update 命令遇到如下错误提示Errors during downloading metadataforrepositoryUnionTechOS-Server-20-UFU:- Status code:401forhttps://euler-packages.chinauos.com/server-euler/fuyu/1050/UFU/x86_64/repodata/repomd.xml Error: Failed to download metadataforrepoUnionTechOS-Server-20-UFU:Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried2、下午找错误的原因和AI battle 了半天切换源改配置文件硬没找到解决问题的途径在官网地址找到解决方案官网地址https://faq.uniontech.com/sever/sysmain/8742。因为授权方案更新上线的原因1050-ufu(A/E)版本原有默认源地址出现了预期内的401报错问题查看系统版本输入命令uos-activator-cmd -q3、按照官网方案执行相关脚本./1050-ufu.sh报错如下。还是源地址有问题获取https://euler-packages.chinauos.com/server-euler/ufu/fuyu/1050/everything/x86_64/Packages/UnionTech-repos-ufu-1-2.uel20.x86_64.rpm curl:(22)The requested URL returned error:404错误跳过 https://euler-packages.chinauos.com/server-euler/ufu/fuyu/1050/everything/x86_64/Packages/UnionTech-repos-ufu-1-2.uel20.x86_64.rpm - 传输失败4、研究了半天最终找到解决方案啦执行即可有效备份旧源可回滚mkdir -p /etc/yum.repos.d/bakmv /etc/yum.repos.d/*.repo /etc/yum.repos.d/bak/写入1050E可用的UFU源cat /etc/yum.repos.d/ufu-e.repo EOF[ufu-e]nameUnionTech 1050E-ufu Free Repositorybaseurlhttps://euler-packages.chinauos.com/server-euler/ufu/fuyu/1050/everything/x86_64/enabled1gpgcheck0EOF刷新缓存验证源yum clean allyum makecache