information on the preset policy format, see systemd.preset (5). Added in version 238. preset ... systemd.resource-control (5), systemd.special (7), wall (1), systemd.preset (5), s…disable units according to preset policy. See systemd.preset (5) and "First Boot Semantics" in machineenabling or disabling them according to the systemd.preset (5) settings. systemd-firstboot.service is started laterenabling or disabling them according to the systemd.preset (5) settings. systemd-firstboot.service is started laterNAME systemd-sshNAME systemd-runNAME systemd-notify