[CentOS] howto install yumex

On 12/08/16 05:53, geo.inbox.ignored wrote:
>> If you do:
>>
>> yum install epel-release
>>
>> you should get the key installed.
>>
> Installing:
>  epel-release            noarch            6-8            epel             14 k
> 
> GPG key retrieval failed: [Errno 14] Could not open/read
> file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

You incorrectly attempted to install epel already and it's interfering.
Try this:

yum --disablerepo=epel --enablerepo=extras install epel-release


Peter