In order to install RHS6, first of all we mount our satellite iso:

  # mkdir /root/rhs6
  # mount -o loop satellite-6.0.4-rhel-7-x86_64-dvd.iso /root/rhs6

And as we’re in a disconnected mode, we don’t have access to Red Hat Software Collections and RHS6 depends on ruby193. As the installer doesn’t do it automatically, we create a local repo for it.
It would be nice to report it to RH but I’m lazy 🙂

   # cat /etc/yum.repos.d/rhel7rhscl.repo
   [rhel7rhscl]
   name = RHEL7 RHSCL
   baseurl = file:///root/rhs6/RHCSL/
   enabled = 1

And then we can proceed to install RHS6 and configure it:

  # cd /root/rhs6
  # ./install_packages
  # katello-installer
  * Katello is running at https://xxxx
      Initial credentials are admin / xxxxx
  * Capsule is running at https://xxxx:9090
  * To install additional capsule on separate machine continue by running:"
      capsule-certs-generate --capsule-fqdn "$CAPSULE" --certs-tar "~/$CAPSULE-certs.tar"
  The full log is at /var/log/katello-installer/katello-installer.log

And then we need to open some ports in order to make everything work:

  # firewall-cmd --permanent --zone=public --add-service=http
  # firewall-cmd --permanent --zone=public --add-service=https
  # firewall-cmd --permanent --zone=public --add-port=5671/tcp
  # firewall-cmd --permanent --zone=public --add-port=8080/tcp
  # firewall-cmd --permanent --zone=public --add-port=8140/tcp
  # firewall-cmd --permanent --zone=public --add-port=9090/tcp
  # firewall-cmd --permanent --zone=public --add-port=9200/tcp
  # systemctl reload firewalld

As a first step you can login to RHS through its web interface using admin as user and the autogenerated password that katello-installer provided us:

* https://xxxx