systemd-tpm2-clear.service(8) — Linux manual page

SYSTEMD-....SERVICE(8)  systemd-tpm2-clear.service SYSTEMD-....SERVICE(8)

NAME         top

       systemd-tpm2-clear.service - Request that the TPM security chip is
       cleared on next boot

SYNOPSIS         top

       systemd-tpm2-clear.service

       /usr/lib/systemd/systemd-tpm2-clear

DESCRIPTION         top

       systemd-tpm2-clear.service is a service that requests that the TPM
       is reset by the PC firmware on the next boot. It makes use of the
       TPM Physical Presence Interface (PPI). Note that this service does
       not immediately execute the clear operation, but simply asks the
       PC firmware to execute it at next boot, where the user will be
       asked for confirmation before the operation is done.

       systemd-tpm2-clear.service is typically hooked into the
       factory-reset.target unit in order to request the TPM request
       before an immediate reboot. See Factory Reset[1] for more
       information.

OPTIONS         top

       The following options are understood:

       --graceful
           Exit cleanly and execute no operation if the system does not
           possess a TPM chip.

           Added in version 258.

       -h, --help
           Print a short help text and exit.

       --version
           Print a short version string and exit.

KERNEL COMMAND LINE         top

       systemd-tpm2-clear understands the following kernel command line
       parameters:

       systemd.tpm2_allow_clear=
           Takes a boolean argument. If false the service will succeed,
           but instead of requesting the TPM clear operation from the PC
           firmware it will not execute any operation. If not specified
           defaults to true.

           Added in version 258.

SEE ALSO         top

       systemd(1), systemd-tpm2-setup.service(8),
       systemd-factory-reset-request.service(8)

NOTES         top

        1. Factory Reset
           https://systemd.io/FACTORY_RESET

COLOPHON         top

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systemd 258~rc2                                    SYSTEMD-....SERVICE(8)

Pages that refer to this page: systemd.directives(7),  systemd.index(7)

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