tpm_setenable8

Usage

TPM Management - tpm_setenable

Overview

tpm_setenable reports the status of the TPM's flags regarding the enable state of the TPM. This is the default behavior and also accessible via the --status option. Requesting a report of this status prompts for the owner password. The --enable option changes the system's TPM to the enabled state (via the TPM_OwnerSetDisable API). This operation prompts for the owner password and is persistent. The --disable option (via the TPM_OwnerSetDisable API) changes the system's TPM to the disabled state. This operation prompts for the owner password and is persistent. A disabled TPM is essentially off and does not allow a tpm_takeownership to occur. The --force option overrides the owner password prompt and relies on physical presence for the operation authorization (via the TPM_PhysicalEnable and TPM_PhysicalDisable APIs). The --enable, --disable, and --status options are mutually exclusive and the last one on the command line will be carried out.

-h, --help

Display command usage info.

-v, --version

Display command version info.

-l, --log [none|error|info|debug]

Set logging level.

-u, --unicode

Use TSS UNICODE encoding for passwords to comply with applications using TSS popup boxes

-s, --status

Report the status of flags regarding the TPM enable states.

-e, --enable

Make the TPM enabled. Operation is persistent and prompts for owner authorization.

-d, --disable

Make the TPM disabled. Operation is persistent and prompts for owner authorization.

-f, --force

Overrides the prompt for owner authorization and uses physical presence to authorize the action.

-z, --well-known

Authenticate using 20 bytes of zeros as owner password (the default TSS Well Known Secret), instead of prompting for an owner password.