Installing an Aster instance on a Hadoop cluster uses Teradata's Parallel Upgrade Tool (PUT) to install the Aster Execution Engine Base Module software package. The instructions in this guide require that before installing the Aster Execution Engine Base Module software package that you have already installed and will manage a supported OS and Hadoop distribution on the Hadoop cluster. See Supported OS and Hadoop Distribution Combinations or the Teradata Aster® Execution Engine Release Notes for the supported OS and Hadoop distribution combinations.