Sony implemented a hypervisor restricting access from the RSX.IBM provided an introduction to programming parallel applications on the Play Station 3. A class action lawsuit was filed against Sony on behalf of those who wished to pursue legal remedies (see Play Station 3 system software) but was dismissed with prejudice in 2011 by a federal judge.Other OS was a feature available in early versions of the Play Station 3 video game console that allowed user installed software, such as Linux or Free BSD, to run on the system.The feature is not available in newer models and is removed from older models through system firmware update 3.21, released April 1, 2010.The installation manual for the Yellow Dog Linux version for PS3 stated, "It was fully intended that you, a PS3 owner, could play games, watch movies, view photos, listen to music, and run a full-featured Linux operating system that transforms your PS3 into a home computer." Most of the filing relates to violation of various consumer protection laws relating to the removal.Several other lawsuits were also filed and are somewhat similar in nature but are filed by other individuals.In January 2011, Sony sued Hotz and members of failoverflow for their jailbreaking of the PS3. District Judge Richard Seeborg dismissed most of the class claims with leave to amend, finding the plaintiffs failed to state a claim.Not so long ago, Sony released Firmware 4.80 which was an yet another stability update. Of course, the Cobra 7.3 payload isn’t missing from this release.
The judge stated: "As a legal matter, [..] plaintiffs have failed to allege facts or articulate a theory on which Sony may be held liable." finding that plaintiffs had indeed made clear and sufficiently substantial claims.
Ultimately, in 2016, Sony settled with users who installed Linux or purchased a Play Station 3 based upon the alternative OS functionality.
Since 2000, Sony has used the fact that the Play Station 2 can run Linux in its marketing.
They promoted the release of the PS2 Linux Kit, which included a Linux-based operating system, a USB keyboard and mouse, a VGA adapter, a Play Station 2 Ethernet network adapter, and a 40 GB hard disk drive (HDD).
The Play Station 3 does not have Linux pre-installed.
However, Sony included an option in the XMB menu soon after the Play Station 3 launched that allowed booting into Linux from the hard drive or from a Live CD that the distributor's kernel would boot.