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sudo systemctl disable lvm2-monitor.service
sudo systemctl mask iio-sensor-proxy.service
sudo mkdir -p /etc/systemd/journald.conf.d
echo -e "[Journal]\nSystemMaxUse=30M\nRuntimeMaxUse=30M" | sudo tee /etc/systemd/journald.conf.d/size.conf
sudo journalctl --vacuum-size=30M