OS PLatforms

SCO's legal successor Xinuos asks legal brains to let it bite IBM over ancient license and copyright claims

The ancient dispute over ownership of UNIX, and perhaps Linux too, has returned to court. Again.As The Register has explained many, many, times since this matter first went to court in 2003, the roots of the case are the 1998 alliance between IBM and a company called the Santa Cruz Operation which sold a version of UNIX for x86 CPUs. Those two companies, plus Intel and Sequent, created “Project Monterrey” – an effort to create a unified version of UNIX that could run on multiple processors.By 2001, Project Monterrey was close to delivering a unified UNIX, an achievement made possible by blending code from IBM and SCO.

By then, a little project called “Linux” already ran on multiple processors. Big Blue decided Linux was the future and bailed from Project Monterrey – then allegedly contributed some Monterrey code to the open-source project and to its own AIX and Z operating systems. SCO felt it owned some of that code, so sued IBM.

SCO and its successors struggled to survive, but interested parties kept the lawsuit alive because the chance to emerge as owner of parts of the Linux codebase, and IBM’s code, had the potential to turn into a colossal payday.