Dell's 12th-generation PowerEdge server line now supports the use of Ubuntu 12.04 across the board, thanks to a new agreement between the hardware maker and developer Canonical that provides Ubuntu Advantage services to Dell's customers. Dell now offers 74 server models certified for use with Ubuntu, according to Canonical -- the most of any major hardware OEM. The company's 12th-generation line, which was released in February 2012, is its latest and most advanced.