云服务器yum无法解析mirrorlist.centos.org

root\~\]# yum list available 已加载插件:fastestmirror Loading mirror speeds from cached hostfile Could not retrieve mirrorlist http://mirrorlist.centos.org?arch=x86_64\&release=7\&repo=sclo-sclo 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=\ ... 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 \ or subscription-manager repos --disable=\ 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=\.skip_if_unavailable=true Cannot find a valid baseurl for repo: centos-sclo-sclo/x86_64 \[root \~\]# 景象源的问题,更新YUM仓库源为阿里云镜像源 sudo vi /etc/yum.repos.d/CentOS-Base.repo 将原来的 [base] name=CentOS-$releasever enabled=1 failovermethod=priority baseurl=http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=http://mirrors.cloud.aliyuncs.com/centos/RPM-GPG-KEY-CentOS-7 [updates] name=CentOS-$releasever enabled=1 failovermethod=priority baseurl=http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/ gpgcheck=1 gpgkey=http://mirrors.cloud.aliyuncs.com/centos/RPM-GPG-KEY-CentOS-7 [extras] name=CentOS-$releasever enabled=1 failovermethod=priority baseurl=http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/ gpgcheck=1 gpgkey=http://mirrors.cloud.aliyuncs.com/centos/RPM-GPG-KEY-CentOS-7 改成 [contrib] name=CentOS-$releasever - Contrib - mirrors.aliyun.com failovermethod=priority baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/ http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/ http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7 [centos-sclo-rh] name=CentOS-7 - SCLo rh baseurl=http://vault.centos.org/centos/7/sclo/$basearch/rh/ gpgcheck=1 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo [centos-sclo-sclo] name=CentOS-7 - SCLo sclo baseurl=http://vault.centos.org/centos/7/sclo/$basearch/sclo/ gpgcheck=1 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo

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