systemd-random-seed.service(8) [xfree86 man page]
SYSTEMD-RANDOM-SEED.SERVICE(8) systemd-random-seed.service SYSTEMD-RANDOM-SEED.SERVICE(8) NAME
systemd-random-seed.service, systemd-random-seed - Load and save the system random seed at boot and shutdown SYNOPSIS
systemd-random-seed.service /usr/lib/systemd/random-seed DESCRIPTION
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. SEE ALSO
systemd(1), random(4) systemd 237 SYSTEMD-RANDOM-SEED.SERVICE(8)
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SYSTEMD-CRYPTSETUP@.SERVICE(8) systemd-cryptsetup@.service SYSTEMD-CRYPTSETUP@.SERVICE(8) NAME
systemd-cryptsetup@.service, systemd-cryptsetup - Full disk decryption logic SYNOPSIS
systemd-cryptsetup@.service /usr/lib/systemd/systemd-cryptsetup DESCRIPTION
systemd-cryptsetup@.service is a service responsible for setting up encrypted block devices. It is instantiated for each device that requires decryption for access. systemd-cryptsetup@.service will ask for hard disk passwords via the password agent logic[1], in order to query the user for the password using the right mechanism at boot and during runtime. At early boot and when the system manager configuration is reloaded this /etc/crypttab is translated into systemd-cryptsetup@.service units by systemd-cryptsetup-generator(8). SEE ALSO
systemd(1), systemd-cryptsetup-generator(8), crypttab(5), cryptsetup(8) NOTES
1. password agent logic http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents systemd 208 SYSTEMD-CRYPTSETUP@.SERVICE(8)