this post was submitted on 28 Apr 2025
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Linux
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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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What is the purpose, what are you trying to update?
What is in the image file? Can it be mounted?
Also please do not confuse SteamOS with ArchLinux, for your own sake.
Since I'm novice, I'll just share This
I'm assuming it can be mounted, and I'm expecting newer versions to have some additional menus/firmware, or some such. My primary focus is a fan controller.
And yeah, I know it's a different distro, but Arch based from what I understand.
SteamOS is immutable, and has its own updater because of it. While SteamOS is related to Arch Linux, it is far from the same distro.
Regular Arch Linux can install local packages, the process is described on the Arch wiki. SteamOS has no built in mechanism to update without an internet connection, and installing packages manually is not recommended (due to the immutable nature of the system).
In order to update SteamOS from a local file, you would need to figure out how SteamOS updates work, and somehow trick the Steam Deck into accepting your local images. This is far outside the scope of anything related to Arch Linux, and not very well documented. The better option is to update your Steam Deck by connecting it to the internet.
Also of note, the latest version of SteamOS (as far as I'm aware) does not have any significant changes when it comes to controlling the fan speed.
Thanks for all of that info