标题: 《CentOS 7 镜像源失效终极办理方案(2024年更新)》——生命周期停止后的 [打印本页] 作者: 万有斥力 时间: 2025-2-23 17:04 标题: 《CentOS 7 镜像源失效终极办理方案(2024年更新)》——生命周期停止后的 错误信息提示:
yum install -y yum-utils \ > device-mapper-persistent-data \ > lvm2 --skip-broken 已加载插件:fastestmirror, langpacks Loading mirror speeds from cached hostfile Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误" One of the configured repositories failed (未知), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Run the command with the repository temporarily disabled yum --disablerepo=<repoid> ... 4. Disable the repository permanently, so yum won't use it by default. Yum will then just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable <repoid> or subscription-manager repos --disable=<repoid> 5. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true Cannot find a valid baseurl for repo: base/7/x86_64
弁言
2024年6月30日,CentOS 7正式结束生命周期(EOL),官方停止维护支持。许多用户发现,原本依赖的默认镜像源(如mirrorlist.centos.org)已无法访问,导致yum安装失败并报错Could not resolve host。本文将深入分析问题根源,并提供一键修复方案、镜像源替换方案以及长期体系迁徙建议,助你快速恢复体系功能。 问题征象与原因
当实利用用yum安装软件包时,体系会抛出以下错误:
curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误"
Cannot find a valid baseurl for repo: base/7/x86_64