On Wed, Feb 3, 2021 at 7:27 PM Davide Cavalca via CentOS-devel <centos-devel at centos.org> wrote: > We do "rolling OS updates". We keep dated snapshots of the repo and > whenever we do an update we shard a change to dnf.conf to include the > repo with the new snapshot and run 'dnf upgrade' from Chef. We test And... this is why I publish tools for reposync and rsync based mirroring of RHEL or CentOS repositories. CentOs is a bit easier due to being able to use "rsync" and get associated ISO or PXE images. reposync has a mild advantage in mapping a particular state of the dns repository.