CentOS7执行yum报错"One of the configured repositories failed"

  • 错误信息:

    yum update
    Loaded plugins: fastestmirror
    base                                                                                                                                                  | 3.6 kB  00:00:00
     One of the configured repositories failed (Unknown),
     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>
                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
                yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
    Cannot retrieve metalink for repository: epel/x86_64. Please verify its path and try again


    # 1、删除epel.repo
    rm -rf /etc/yum.repos.d/epel.repo
    rm -rf /etc/yum.repos.d/epel-testing.repo
    # 2、检查DNS
    vi /etc/resolv.conf
    # 添加: nameserver
    # 重启网络服务
    systemctl restart network
    # 测试是否修复
    yum update

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