diff --git a/manager.py b/manager.py
index 2c86386..0f4196e 100755
--- a/manager.py
+++ b/manager.py
@@ -39,16 +39,21 @@ def vmm_start(args):
 		print("VM {0} is already running!".format(args.vmid))
 		return
 	
+	#TODO: pass ignore hibernation file flag
 	print('Starting VM {0.vmid}.'.format(args))
 	fullpath_manager = os.path.realpath(sys.argv[0])
 	helper.startVM(args.vmid,fullpath_manager)
 	#print("Successfully started: " + ("yes" if helper.process_running(args.vmid) else "no"))
+
 def vmm_shutdown(args):
 	timeout = SHUTDOWN_TIMEOUT if args.t is None or args.t < 0 else args.t
 	stCallback = lambda vmid, st : print("VM {0}: {1}".format(vmid, stopStatusToMessage[st]))
 
 	helper.shutdownVMs(timeout, args.s is None or args.s < 1, statusCallback=stCallback)
 
+def vmm_hibernate(args):
+	#TODO: implement ;)
+
 def vmm_stop(args):
 	if(not helper.process_running(args.vmid)):
 		print("VM {0} is not running!".format(args.vmid))
@@ -126,6 +131,7 @@ def main():
 
 	parser_start = subparsers.add_parser('start', help='starts a VM')
 	parser_start.add_argument('vmid', action='store', help='the ID of the VM')
+	parser_start.add_argument('-i', action='count', help='ignore saved VM state')
 	parser_start.set_defaults(func=vmm_start)
 
 	parser_authorized = subparsers.add_parser('gen-auth-keys', help='Regenerates authorized_keys file')
@@ -142,7 +148,10 @@ def main():
 	parser_shutdown.add_argument('-t', action='store',type=int, default=SHUTDOWN_TIMEOUT, help='forcefully quit after given timeout value (signed integer)')
 	parser_shutdown.add_argument('-s', action='count', help='sequencial mode, timeout for each vm')
 	parser_shutdown.set_defaults(func=vmm_shutdown)
-	
+
+	parser_hibernate = subparsers.add_parser('hibernate', help='Suspend the execution of all VMs and save theire state to disk')
+	parser_hibernate.set_defaults(func=vmm_hibernate)
+
 	parser_status = subparsers.add_parser('status', help='query the status a VM')
 	parser_status.add_argument('-v', action='count', help='increase verbosity')
 	parser_status.add_argument('vmid', action='store', default=0, help='the ID of the VM')