I have installed Foreman Dashboard on CentOS 6.5 using Packages.
I am using mysql database for foreman Dashbaord.
cat /etc/foreman/settings.yaml
---
# You must restart the Rack server after changing either of these values
# because they are cached at startup.
#
:unattended: true
:login: true
:require_ssl: false
:locations_enabled: false
:organizations_enabled: false
#JSONP or "JSON with padding" is a complement to the base JSON data format.
#It provides a method to request JSON data from a server in a different domain.
:support_jsonp: false
#:puppetconfdir: /etc/puppet
#:puppetvardir: /var/lib/puppet
# Mark translated strings with X characters (for developers)
:mark_translated: false
# Local administrative settings for application domain, fqdn, foreman URL,
# administrator email address etc. If you don't have a Puppet provisioning
# system you may want to change to setup your project on your local machine.
I can open login page of Foreman Dashboard, but do not default know username and password.