% tpm2_startup(1) tpm2-tools | General Commands Manual
tpm2_startup(1) - Send a startup command to the TPM.
tpm2_startup [OPTIONS]
tpm2_startup(1) - Send a TPM2_Startup command with either TPM_SU_CLEAR or TPM_SU_STATE.
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-c, --clear:
Startup type sent will be TPM_SU_CLEAR instead of TPM2_SU_STATE.
common options collection of common options that provide information many users may expect.
common tcti options collection of options used to configure the various known TCTI modules.
tpm2_startup
tpm2_startup -c
Typically a Resource Manager (like tpm2-abrmd) or low-level/boot software will have already sent this command.