this post was submitted on 13 Jan 2026
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Linux
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From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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The kernel is copyleft (100% of it). The majority (more than half) of the other software in a typical Linux distro is not copyleft. The most popular license is MIT. Apache 2.0 (the license that Android uses) is pretty common in Linux distros as well.
To top it off. the majority of GPL software has nothing whatsoever to do with the GNU project, starting with the Linux kernel.
Technically, sort of, but GPLv2 isn't good enough. Stuff has to be GPLv3 (or AGPLv3) to fulfill the intent of protecting the end user's right to control their machine. That's the essential thing people are looking for when they choose "Linux"
if it's a tyrant device like a smart TV that's subverted to work against the user by showing ads or whatever, nobody gives a shit if it's running a Linux kernel because that fact doesn't actually help them usurp the manufacturer's control.
Usurpation of control is what "GNU/Linux" implies. The fine details of which software has what license isn't the point; whether the system as a whole delivers on the promise of user freedom is.