[CentOS] Fwd: SOS

Fri Oct 30 14:33:27 UTC 2015
Hugo Fernández <hugof at upeu.edu.pe>


Please help me.  I have installed Centos 7 , but when I do,  yum update
 give me error next.

Complementos cargados:fastestmirror, langpacks

 One of the configured repositories failed (Desconocido),
 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

     2. Reconfigure the baseurl/etc. for the repository, to point to a
        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. Disable the repository, so yum won't use it by default. Yum will
        just ignore the repository until you permanently enable it again or
        --enablerepo for temporary usage:

            yum-config-manager --disable <repoid>

     4. Configure the failing repository to be skipped, if it is
        Note that yum will try to contact the repo. when it runs most
        so will have to try and fail each time (and thus. yum will be be
        slower). If it is a very temporary problem though, this is often a

            yum-config-manager --save

Cannot find a valid baseurl for repo: base/7/x86_64

Gracias de antemano.