this post was submitted on 24 Jul 2024
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I use Arch btw

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Why block muting the OS? (i.imgflip.com)
submitted 1 month ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 2 points 1 month ago (1 children)

So how are OS updates handled, they are not written into the main OS?

[โ€“] [email protected] 1 points 1 month ago

They are written but don't replace something in the read-only OS. They are just overlayed, so once removed the original is still there. How they do it differs. There are actual overlay filesystems for the job, or some use btrfs where all subvolumes behave mostly like virtual partitions (and copies of a subvolume only take space for changes of the original).