systemd Developer Lennart Poettering lennart@poettering.net systemd-random-seed-load.service 8 systemd-random-seed-load.service systemd-random-seed-save.service systemd-random-seed Load and save the system random seed at boot and shutdown systemd-random-seed-load.service systemd-random-seed-save.service /usr/lib/systemd/systemd-random-seed 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 random4 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. systemd1, random4