this post was submitted on 04 May 2025
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sudo pacman -Sy mesa vulkan-radeon (or smth like that)
Edit: Yeah, I know, Syu. I very rarely not do Syu. But /usr/bin/brain segfaulted while trying to be smart.
-Sy is recommended against. -S or -Syu, but not -Sy
Can I ask why? Iβm newer to Arch and I legit donβt know.
-S means sync, or to install/update a package
y means to update the local package db, so which packages are available and especially which version is newest
u means update the packages themselves
So -Sy would just get which newest packages are available, and then install eg. mesa version 6.9. However, mesa version 6.9 may depend on ligmalib 3.2. However, because you didn't specify -u, ligmalib 3.1 is not updated to 3.2. And then you have a partial update.
Arch's package system basically relies on all packages in all single points in time being compatible with each other. So if you look at the db now, all packages should have the correct versions of dependencies available. But if you mix different states, eg. update a few packages at 2:00 and some others at 17:00, that's not given anymore
Same question for me. Iβve never heard this.
@sudoleah @myersguy this will refresh db without updating system and install package. If new package depends on newer libraries than other installed packages, it will break dependencies for installed packages. That might be easily solved with local solib dependency tracking (like gentoo preserved-libs database), but arch does not have it.
Yeah, only thought that halfway through lol