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this post was submitted on 20 Sep 2023
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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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Sorry for my dumb question but what is the difference between the Linux kernel at kernel.org and say the Linux kernal at Ubuntu.org? It is just different maintainers?
For example I believe the LTS version of Ubuntu runs for 5 years and you can pay for Pro support and get 10 years on their ESM version, if I understand correctly you can keep the same kernel version though the duration.
The other two answers are correct but missing one maker thing: many major distributions apply patches to the kernel before distributing. So there are very slight modifications.