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submitted 20 hours ago by thingsiplay@beehaw.org to c/linux@lemmy.ml

On Archlinux it is not recommended to update only one package with the package manager pacman. Let's say I have 11 packages, and one of them is extra/firefox (true story). Updating only a pacman -S firefox could introduce problems, but installing a new single package if it wasn't there is okay.

So my question is, could we get around this by removing and installing the same package again in one go: pacman -Rs firefox && pacman -S firefox

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[-] thingsiplay@beehaw.org 1 points 19 hours ago* (last edited 19 hours ago)

We can install a new package if it wasn't installed with pacman -S firefox. That is not a partial upgrade of the system. Right? What i don't understand is, when I uninstall with pacman -Rs firefox, delete the cached firefox package (only that file), then the system is in the same state as before I installed it. Then -S firefox should be okay, right? And it even looks up the new version. This is my question, if that would work correctly.

IF no dependency tries to update too. Off course in that case I would stop. Without pacman -Sy, I never do that anyway, only -Syu.

[-] kevincox@lemmy.ml 12 points 18 hours ago

IF no dependency tries to update too. Off course in that case I would stop. Without pacman -Sy, I never do that anyway, only -Syu.

That's all you need to know. As long as you always use pacman -Syu you will be fine. pacman -Sy is the real problem. The wiki page is pretty clear about the sequences of commands that are problematic https://wiki.archlinux.org/title/System_maintenance#Partial_upgrades_are_unsupported.

Right? What i don’t understand is, when I uninstall with pacman -Rs firefox, delete the cached firefox package (only that file), then the system is in the same state as before I installed it. Then -S firefox should be okay, right? And it even looks up the new version.

This isn't correct. It won't look up the new version. Assuming that the system was in a consistent state it will download the exact same package that you deleted. The system only ever "updates" when you run pacman -Sy. Until you use -y all packages are effectively pinned at a specific version. If the version that gets installed is different than the one you removed it probably means that you were breaking the partial update rule previously.

this post was submitted on 01 Oct 2025
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