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tpm_setenable(8)	     System Manager's Manual		tpm_setenable(8)

			 TPM Management - tpm_setenable

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_Owner-
     SetDisable API) changes the system's TPM to the disabled state.  This oper-
     ation 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 pres-
	    ence 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)

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