Description of problem:
I'm using two host: one for the engine, the other as an hypervisor.
Both with latest fedora 19 updates.
I installed the ovirt engine, release 3.5 RC2, on the first host and from the web admin UI I was trying to add the second host.
I forgot to add oVirt 3.5 repo on it and host-deploy doesn't check it at all; it simply gets older packages from fedora repository generating than a nonworking setup.

Version-Release number of selected component (if applicable):
3.5 RC2

How reproducible:
100%

Steps to Reproduce:
1. two fedora 19 hosts, install the engine on one of them
3. without adding any additional rpms repository on the second host try to add it via the web admin gui

Actual results:
host-deploy doesn't add any yum repository but is able to download older package release from fedora repositories. The system is not able to add the host cause the required package are too old.

Expected results:
a or b:
a. host-deploy adds also the required repository in order to complete the setup
b. it fails but it advises the user to add ovirt repository on the desidered host before trying again

Additional info: