centos 安装pip时报错

[root@index-es app-ai]# yum update
Loaded plugins: fastestmirror
Repository centos-sclo-rh is listed more than once in the configuration
Determining fastest mirrors
Could not retrieve mirrorlist http://mirrorlist.centos.org?arch=x86_64&release=7&repo=sclo-rh error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"One of the configured repositories failed (Unknown),and yum doesn't have enough cached data to continue. At this point the onlysafe 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 workingupstream. This is most often useful if you are using a newerdistribution release than is supported by the repository (and thepackages for the previous distribution release still work).3. Run the command with the repository temporarily disabledyum --disablerepo=<repoid> ...4. Disable the repository permanently, so yum won't use it by default. Yumwill then just ignore the repository until you permanently enable itagain or use --enablerepo for temporary usage:yum-config-manager --disable <repoid>orsubscription-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 muchslower). If it is a very temporary problem though, this is often a nicecompromise:yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=trueCannot find a valid baseurl for repo: centos-sclo-rh/x86_64

问题分析

由于 DNS 解析问题导致的。这意味着系统无法解析 mirrorlist.centos.org 的域名，从而无法获取软件包列表。

解决方法

禁用问题仓库 ：

• 如果不需要 centos-sclo-rh 仓库，可以暂时禁用它：

  sudo yum-config-manager --disable centos-sclo-rh
  

以上命令指示查看仓库状态

保存后， 重新执行 yum update 成功