title: Getting error while starting hadoop
body: <p>I have Hadoop 0.20 , i am starting it by running $HADOOP/bin/start-all.sh.
  Every demon is running but while datanode it throws error</p>
  
  <blockquote>
    <p>localhost: Unrecognized option: -jvm <br>
    localhost: Error: Could not create the Java Virtual Machine. <br>
    localhost: Error: A fatal exception has occurred. Program will exit.</p>
  </blockquote>
  
  <p>But i have installed java.</p>
  
  <blockquote>
    <p>[root@ulhshr1ld1 bin]# java -version <br>
    java version "1.7.0_01"
    Java(TM) SE Runtime Environment (build 1.7.0_01-b08)<br>
    Java HotSpot(TM) Server VM (build 21.1-b02, mixed mode)</p>
  </blockquote>
  
  <p>And i am also able to access <strong>http://localhost:50070/dfshealth.jsp</strong> And <strong>http://localhost:50030/jobtracker.jsp</strong></p>
  
  <p>Can any one please guide me whats is the problem?</p>