anchor.diff:  
   d-i     clock-setup/utc boolean true
   d-i     clock-setup/ntp boolean true
  -d-i     clock-setup/ntp-server  string <%= @node[:bcpc][:ntp_servers].first %>
  +d-i     clock-setup/ntp-server  string <%= @node[:ntp][:servers].first %>
   # This will install the base 12.04 kernel image.  If you comment out the
   # following line, it will install the upgraded kernel LTS stack.
   d-i     base-installer/kernel/image     string linux-server
  
positive.code: d-i     mirror/country string manual
  d-i     mirror/http/hostname string <%= @node[:bcpc][:bootstrap][:mirror] %>
  d-i     mirror/http/directory string /ubuntu
  d-i     mirror/http/proxy string
  d-i     apt-setup/security_host <%= @node[:bcpc][:bootstrap][:mirror] %>
  d-i     apt-setup/security_path string /ubuntu
  <% end %>
  
negative.code: d-i     user-setup/encrypt-home boolean false
  d-i     passwd/user-default-groups      string adm cdrom dialout lpadmin plugdev sambashare
  d-i     apt-setup/services-select       multiselect security
  <% if @node[:bcpc][:bootstrap][:proxy].nil? %>
  d-i     mirror/http/proxy string
  <% else %>
  d-i     mirror/http/proxy string <%= @node[:bcpc][:bootstrap][:proxy] %>
  <% end %>
  <% if @node[:bcpc][:bootstrap][:mirror].nil? %>
  d-i     apt-setup/security_host string security.ubuntu.com
  d-i     apt-setup/security_path string /ubuntu
  