Looks like pcs on Ubuntu is off to a great start... :/

gistfile1.txt

$ sudo pcs status        
Cluster name: debian
WARNING: no stonith devices and stonith-enabled is not false
Traceback (most recent call last):
  File "/usr/sbin/pcs", line 231, in <module>
    main(sys.argv[1:])
  File "/usr/sbin/pcs", line 171, in main
    cmd_map[command](argv)
  File "/usr/lib/python2.7/dist-packages/pcs/status.py", line 18, in status_cmd
    full_status()
  File "/usr/lib/python2.7/dist-packages/pcs/status.py", line 66, in full_status
    if not utils.is_rhel6() and utils.corosyncPacemakerNodeCheck():
  File "/usr/lib/python2.7/dist-packages/pcs/utils.py", line 1789, in corosyncPacemakerNodeCheck
    cs_nodes = getCorosyncNodesID()
  File "/usr/lib/python2.7/dist-packages/pcs/utils.py", line 1755, in getCorosyncNodesID
    cs_nodes[node_list_node_mapping[m.group(1)]] = m.group(2)
KeyError: u'0'