systemd-random-seed.service, systemd-random-seed - Load and save the
   system random seed at boot and shutdown





   systemd-random-seed.service is a service that restores the random seed
   of the system at early boot and saves it at shutdown. 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/systemd/random-seed.


   systemd(1), random(4)

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