How to get lzo compression library loaded?

Hello: I have followed this link:http://code.google.com/p/hadoop-gpl- compression/wiki/FAQ to install lzo compression library,and copy hadoop-lzo-0.4.4.jar to $HADOOP_HOME/lib,and all files under ..lib/native/Linux-amd64-64 to $HADOOP_HOME/lib/native/Linux-amd64-64, and run example,but got

Re: How to get lzo compression library loaded?

Hi Alex, org.apache.hadoop.io.compress.GzipCodec is in the hadoop-core-*.jar. You don't need to add /usr/local/hadoop/hadoop-0.20.2/lib/ to the classpath since hadoop shell script does it for you. What is exactly the command you are trying to run? Can you also give the output of 'env | grep -i