Classic DNF based operating systems can use the DNF Count Me feature to anonymously report how long a system has been running without impacting the user privacy. This is implemented as an additional
countme variable added to requests made to fetch RPM repository metadata. On those systems, this value is added randomly to requests made automatically via the
dnf-makecache.timer or via explicit calls to
dnf update or
However, this does not work for
rpm-ostree based systems as in the default case (no package overlayed on top of the base commit),
rpm-ostree will not fetch any RPM repository metadata at all.
rpm-ostree includes a distinct timer (
rpm-ostree-countme.timer) that implements the DNF Count Me functionality in a standalone way. This timer is triggered on boot after 5 minutes and bi-weekly, in both cases with a random delay.
To disable this feature, you need to stop the
rpm-ostree-countme.timer and mask the corresponding unit as a precaution:
$ systemctl mask --now rpm-ostree-countme.timer