tpm_setenable - Man Page

change TPM enable states

TPM Management - tpm_setenable


tpm_setenable [OPTION]


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.

See Also

tpm_version(1), tpm_setpresence(8), tpm_takeownership(8), tpm_setactive(8), tcsd(8)

Reporting Bugs

Report bugs to <>

Referenced By

tpm_clear(8), tpm_setactive(8), tpm_setownable(8), tpm_setpresence(8), tpm_takeownership(8).

2005-05-06 TPM Management