目前karmic的Cloudera Desktop还没有出来，so，使用jaunty的源，如下：

deb http://archive.cloudera.com/debian jaunty-testing contrib
deb-src http://archive.cloudera.com/debian jaunty-testing contrib

其他安装步骤参照：http://archive.cloudera.com/desktop/packages_pseudo.html
安装完，访问：http://yourserverip:8088/即可
提示说，只在Firefox3上测试过，用ie打开果然惨不忍睹啊。

如果报错：Exception communicating with Hadoop MR JobTracker at localhost:9290: Could not connect to localhost:9290
1.其实cloudera已经将配置文件放在etc/hadoop下了，如下操作:

mv /etc/hadoop/conf /etc/hadoop/conf_back
mv /etc/hadoop/conf.pseudo-desktop/ conf

2.重启Hadoop各服务
ubuntu请运行： sudo passwd root
设置root密码，否则启动会报没有权限

for service in /etc/init.d/hadoop-0.20-*
do
sudo $service restart
done
 
/etc/init.d/cloudera-desktop restart

本文来自: Cloudera Desktop安装配置