anchor.diff:  d-i     netcfg/confirm_static   boolean true
   
   d-i     partman/early_command string \
  -udevadm trigger; udevadm settle --timeout=30 \
  +sleep 10 ; umount /media || /bin/true ;\
  +udevadm trigger; udevadm settle --timeout=30 ;\
   for d in $(ls /dev/sd[a-z]); do \
  -dd if=/dev/zero of=$d bs=4M count=16 || echo "Write to $d failed" \
  +dd if=/dev/zero of=$d bs=4M count=16 || echo "Write to $d failed" ;\
   done
   d-i     partman-auto/disk string /dev/sda
   d-i     partman-auto/method string regular
  
positive.code: d-i     clock-setup/utc boolean true
  d-i     clock-setup/ntp boolean true
  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 <%= @node['bcpc']['preseed']['kernel'] %>
  d-i     passwd/root-login       boolean false
  d-i     passwd/make-user        boolean true
  
negative.code: d-i     partman-partitioning/confirm_write_new_label boolean true
  d-i     partman/choose_partition select Finish partitioning and write changes to disk
  d-i     partman/confirm boolean true
  d-i     partman/confirm_nooverwrite boolean true
  d-i     partman/unmount_active boolean true
  
  d-i     partman-lvm/device_remove_lvm boolean true
  d-i     partman-lvm/confirm boolean true
  