F.M. Taurino (INFM - INFN)
The "gridification" of a computing farm is usually a complex and time consuming task. Operating system installation, grid specific software, configuration files customization can turn into a large problem for site managers. This poster introduces InGRID, a solution used to install and maintain grid software on small/medium size computing farms. Grid elements installation with InGRID consists in three steps. In the first step nodes are installed using RedHat Kickstart, an installation method that automate most of a Linux distribution installation, including disk partitioning, boot loader configuration, network configuration, base package selection. Grid specific software is than integrated using apt4rpm, a package management wrapper over the rpm commands. Apt automatically manages packages dependencies, and is able to download, install and upgrade RPMs from a central software repository. Finally, grid configuration files are customized through LCFGng, a system to setup and maintain Unix machines, that can configure many system files, execute scripts, create users, etc.