使用yum命令报错
报错如下
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; Unknown error" 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> 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
解决方法:
1、确定一下是不是访问网络有问题,比如ping一下百度
2、网络访问权限没有问题,那问题可能是CentOS的yum源的问题,下载一个能访问的yum源放到【/etc/yum.repos.d/】目录下,例如阿里的;
进入 /etc/yum.repos.d/ 目录
然后执行:curl -o /etc/yum.repos.d/CentOS-Base-Ali.repo http://mirrors.aliyun.com/repo/Centos-7.repo
然后再执行:yum makecache 生成缓存
然后测试下(搞定)
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