title: Cannot find hadoop installation: $HADOOP_HOME must be set or hadoop must be in the path
body: <p>So a little background. I've been trying to setup Hive on a CentOS 6 machine. I followed the instructions of this Youtube video: <a href="http://www.youtube.com/watch?v=L2lSrHsRpOI" rel="noreferrer">http://www.youtube.com/watch?v=L2lSrHsRpOI</a></p>
  
  <p>For my case, I'm using Hadoop-1.1.2 and Hive 0.9.0, all the directories labeled "mnt" in this video I replaced it with "opt" because that's where all of my hadoop and hive packages have been opened up.</p>
  
  <p>As I reached the portion of the video where I was actually supposed to run Hive via "./hive"
  this error popped up:</p>
  
  <pre><code>"Cannot find hadoop installation: $HADOOP_HOME must be set or hadoop must be in the path"
  </code></pre>
  
  <p>I guess one of the questions I have is, in which directory did I have to edit the ".profile" file? because I don't understand why we would have to go to the "home" directory for this change. And also if this helps, this is what I had put down in the ".profile" file in my /home/hadoop directory</p>
  
  <pre><code>export HADOOP_HOME=/opt/hadoop/hadoop
  export HIVE_HOME=/opt/hadoop/hive
  export PATH=$HADOOP_HOME/bin:$HIVE_HOME/bin
  </code></pre>
  
  <p>Thank you so much!</p>