this post was submitted on 25 Aug 2025
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Because you’re “sync”ing with the state of the repo. You’re not necessarily upgrading. Sometimes the repos have a lower version than what you have, so you would be downgrading in that case. Or sometimes you’re just using it to install a new package and its dependencies.
-u
is upgrade. And-uu
is upgrade or downgrade. It’s used to filter the packages that sync operates on, so basically you’re syncing any packages that have a different version than the repo.-y
for refresh? No idea.-r
is root, so I guess it was already in use by the time someone added refresh?