The computing giant will certify and support MySQL, the leading open-source database program, and JBoss, a popular Java-based application server, on HP's industry-standard servers.
Under the agreement, both MySQL and JBoss will join HP's partner program and work jointly with HP on testing and engineering support. The companies also will co-operate on customer support.
While overshadowed by IBM in the Linux market, HP has shown significant interest in open-source software since its merger with Compaq Computer. HP recently began working with Novell to put Linux on its desktop PCs. It also has promoted Linux for its Intel-based servers and was one of the first to indemnify Linux customers against legal actions by the SCO Group.
With MySQL and JBoss, HP expands its open-source support to cover two of the fastest-growing areas for server-based software.
Swedish start-up MySQL has grown rapidly in the past few years to become a credible challenger to Microsoft's SQL software for low-end database users. The company doubled its revenue to $12m (£6.5m) last year and expects to continue growing rapidly.
"HP is taking a leadership role in demonstrating the strength of open-source software to cost-effectively support enterprise computing, building on Linux as a cohesive stack," MySQL chief executive Marten Mickos said in a statement. "MySQL is pleased to be... extending customers' choice and flexibility for taking advantage of MySQL's performance and reliability on a variety of HP platforms."
JBoss, meanwhile, has become one of the leading choices for running Java-based Web applications, despite a long-running dispute with Java originator Sun Microsystems and a novel business approach to open-source software.
The two companies formed a partnership earlier this year to jointly market JBoss and MySQL to large corporate customers.
