namenode not getting started

namenode is not getting started. I have followed the same steps mentioned in the thread here.Please refer the console output below

sudo ./hadoop namenode -format
15/10/28 01:01:29 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = surezh06-virtual-machine/127.0.1.1
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 1.0.3
STARTUP_MSG: build =...

namenode not getting started