Bug 1373235

Description of problem:
Trying to install most recent Satellite 6 (6.2.1) on a fully updated RHEL 7.2 fails with different errors.

Version-Release number of selected component (if applicable):
Version     : 6.2.1
Release     : 1.3.el7sat


How reproducible:
Always

Steps to Reproduce:
1. Install RHEL 7.2 @Base group
2. Subscribe it to OS repo and update it. Reboot.
3. Subscribe to Satellite repos, and install Satellite packages
4. Install with command line like this:
  # satellite-installer --scenario satellite --foreman-initial-organization "Organization SA" --foreman-initial-location "Location" --foreman-admin-username=satadmin

Actual results:
Install fails:

[root@satellite ~]# satellite-installer --scenario satellite --foreman-initial-organization "Banco de Guayaquil SA" --foreman-initial-location "Guayaquil" --foreman-admin-username=satadmin
 /usr/bin/wget --no-proxy --timeout=30 --tries=40 --wait=20 --retry-connrefused -qO- http://localhost:8080/candlepin/admin/init > /var/log/candlepin/cpinit.log 2>&1 && touch /var/lib/candlepin/cpinit_done returned 4 instead of one of [0]
 /Stage[main]/Candlepin::Service/Exec[cpinit]/returns: change from notrun to 0 failed: /usr/bin/wget --no-proxy --timeout=30 --tries=40 --wait=20 --retry-connrefused -qO- http://localhost:8080/candlepin/admin/init > /var/log/candlepin/cpinit.log 2>&1 && touch /var/lib/candlepin/cpinit_done returned 4 instead of one of [0]
 /Stage[main]/Foreman::Database/Foreman::Rake[db:seed]/Exec[foreman-rake-db:seed]: Failed to call refresh: /usr/sbin/foreman-rake db:seed returned 1 instead of one of [0]
 /Stage[main]/Foreman::Database/Foreman::Rake[db:seed]/Exec[foreman-rake-db:seed]: /usr/sbin/foreman-rake db:seed returned 1 instead of one of [0]
 /Stage[main]/Foreman_proxy::Register/Foreman_smartproxy[satellite.bggrupo.bank]: Failed to call refresh: Proxy satellite.bggrupo.bank cannot be registered (ApipieBindings::MissingArgumentsError: id): N/A
 /Stage[main]/Foreman_proxy::Register/Foreman_smartproxy[satellite.bggrupo.bank]: Proxy satellite.bggrupo.bank cannot be registered (ApipieBindings::MissingArgumentsError: id): N/A
Installing             Done                                               [100%] [..........................................................................................................................................................]
  Something went wrong! Check the log for ERROR-level output
  The full log is at /var/log/foreman-installer/satellite.log
[root@satellite ~]# 

Expected results:
Install goes OK or a meaningful error is thrown

Additional info: