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Filename : systemd-boot-system-token.service
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#  SPDX-License-Identifier: LGPL-2.1+
#
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Store a System Token in an EFI Variable
Documentation=man:systemd-boot-system-token.service(8)
DefaultDependencies=no
Conflicts=shutdown.target
After=local-fs.target systemd-random-seed.service
Before=shutdown.target

# Don't run this in a VM environment, because there EFI variables are not
# actually stored in NVRAM, independent of regular storage.
ConditionVirtualization=no

# Only run this if the boot loader can support random seed initialization.
ConditionPathExists=/sys/firmware/efi/efivars/LoaderFeatures-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f

# Only run this if there is no system token defined yet, or …
ConditionPathExists=|!/sys/firmware/efi/efivars/LoaderSystemToken-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f

# … if the boot loader didn't pass the OS a random seed (and thus probably was missing the random seed file)
ConditionPathExists=|!/sys/firmware/efi/efivars/LoaderRandomSeed-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=bootctl random-seed --graceful