I saw Google's Chrome OS which is running on the Chromebooks and Chromeboxes and I heard that Chrome OS is cosed-source on the Chroomeboks and the open-source version is called Chromium OS. So, Chrome OS come pre-installed closed-source on the Chromebooks but the open-source version of it it's called Chromium OS. Is Chrome OS closed-source or open-source? And to give an example: Let's say I want to make a computer business, manufacturing computers and selling them with a Linux distribution made by me. And that Linux come pre-installed closed-source on the computer. But I make another version of that OS which is open-source and I publish it on the internet, is this legally? Will I have problmes with the GPL? Will my OS be considered open-source or closed-source? I got to mention that only the closed-source version would come pre-installed on the computers and the source code of that OS would be released for free. That was just an example :)
Chromium Project is open source. Anybody can take the source code and make their own softwares. Google takes the code from chromium project and makes closed source Chrome OS and Chrome browser.
It's a one way route. You can take an open source project and add your proprietary things and give it away as closed source. It doesn't work the other way round. Because as the name suggests, closed source wont give you any source code to fiddle with and if you reverse engineer it and do something, that is illegal.
This question is out of topic at this forum.