Clean an installed Fedora OS:
sudo pkcon refresh force -c -1
rm -f /var/cache/PackageKit/metadata/updates/packages/*
Disable the saving of the rpm's:
Edit /etc/PackageKit/PackageKit.conf
and remove the # of KeepCache
# Keep the packages after they have been downloaded KeepCache=false
dnf clean all --enablerepo=\*
You can delete everything inside of /var/log/journal/* but do not delete the directory itself.
journalctl
to find out how much disk space it's consuming: $ journalctl --disk-usage Journals take up 3.8G on disk.
/etc/systemd/journald.conf
: SystemMaxUse=50M
$ sudo systemctl kill --kill-who=main --signal=SIGUSR2 systemd-journald.service
$ sudo systemctl restart systemd-journald.service