Hi, I install CDH3 follow the mannul as attached file, but when I run the command "su -s /bin/bash -hdfs -c 'hadoop namenode -format'" on page 25, it show that "su: invalid option --h", so I change the comand to "su -s /bin/bash -hdfs -c'hadoop namenode -format'" the message is that "May not run daemons as root.Please specify HADOOP_NAMENODE_USER" So, is there any wrong in my operation? Thanks.
Springring.Xu