Instructions in this write-up were tested and run successfully on Ubuntu 10.04, 10.10, 11.04, and 11.10. The instructions should run, with minor modifications, on most flavors and variants of Linux and Unix. For example, replacing apt-get with yum should get it working on Fedora and CentOS. If you are starting out with Hadoop, one of the best ways to get it working on your box is to build it from