安装lnmp1.5完整版失败 - VPS侦探论坛

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile

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
Could not retrieve mirrorlist http://mirrorlist.centos.org/?re ... =os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"