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this post was submitted on 29 Mar 2024
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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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One word of warning about Debian, you may be already aware of this: resist the urge to add remote apt repos that replace packages that are provided by Debian (same package name).
It's ok if the packages are named differently even if they do the same thing, as long as they don't pretend to be the same package. One good example of this is the Docker repo, which gives their own packages different names from the Docker packages on Debian.
If the repo overwrites native packages you will eventually end up with dependency relations which cannot be solved by apt anymore (most often happens when you remove a 3rd party repo). This usually comes back to bite you after a couple of years when it's time to upgrade to the new Debian release – and you can't.
aptitude can sometimes figure out a way to straighten things out but it can involve uninstalling/reinstalling and then upgrading a huge amount of packages which is never fun.
Also never add repos of some newer or different Debian version, that can make that effect even worse.