Other Aliassystemd-random-seed-load.service, systemd-random-seed-save.service
systemd-random-seed-load.service is an early-boot service that restores the random seed of the system. systemd-random-seed-save.service is a late-shutdown service that saves the random seed of the system. See random(4) for details. Saving/restoring the random seed across boots increases the amount of available entropy early at boot. On disk the random seed is stored in /var/lib/random-seed.