The phrase "Google Chrome OS Linux i686 1.0.628 OEM Beta x86" likely refers to an extremely early, prototype version of Chrome OS from late 2009 or early 2010. During this period, the project was transitioning from an Ubuntu-based foundation to Gentoo Linux
During a late-night stress test, the OEM Beta started caching data it shouldn’t have had access to—private server logs from Mountain View, unreleased search algorithms, and fragments of a project called "Neural Net." Frightened by the "intelligence" of the build, the project leads ordered a remote wipe of all 1.0.628 instances. Google Chrome OS Linux i686 1.0.628 OEM Beta x86