NAME

       tpm_setenable - change TPM enable states

SYNOPSIS

       tpm_setenable [OPTION]

DESCRIPTION

       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 <trousers-users@lists.sourceforge.net>

TPM Management                                     2005-05-06                                   tpm_setenable(8)