1tpm_setenable(8)            System Manager's Manual           tpm_setenable(8)
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5                        TPM Management - tpm_setenable
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NAME

8       tpm_setenable - change TPM enable states
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SYNOPSIS

11       tpm_setenable [OPTION]
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DESCRIPTION

15       tpm_setenable reports the status of the TPM's flags regarding the
16       enable state of the TPM.  This is the default behavior and also
17       accessible via the --status option. Requesting a report of this status
18       prompts for the owner password.  The --enable option changes the
19       system's TPM to the enabled state (via the TPM_OwnerSetDisable API).
20       This operation prompts for the owner password and is persistent. The
21       --disable option (via the TPM_OwnerSetDisable API) changes the system's
22       TPM to the disabled state.  This operation prompts for the owner
23       password and is persistent.  A disabled TPM is essentially off and does
24       not allow a tpm_takeownership to occur.  The --force option overrides
25       the owner password prompt and relies on physical presence for the
26       operation authorization (via the TPM_PhysicalEnable and
27       TPM_PhysicalDisable APIs).  The --enable, --disable, and --status
28       options are mutually exclusive and the last one on the command line
29       will be carried out.
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32       -h, --help
33              Display command usage info.
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35       -v, --version
36              Display command version info.
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38       -l, --log [none|error|info|debug]
39              Set logging level.
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41       -u, --unicode
42              Use TSS UNICODE encoding for passwords to comply with
43              applications using TSS popup boxes
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45       -s, --status
46              Report the status of flags regarding the TPM enable states.
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48       -e, --enable
49              Make the TPM enabled.  Operation is persistent and  prompts for
50              owner authorization.
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52       -d, --disable
53              Make the TPM disabled.   Operation is persistent and prompts for
54              owner authorization.
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56       -f, --force
57              Overrides the prompt for owner authorization and uses physical
58              presence to authorize the action.
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60       -z, --well-known
61              Authenticate using 20 bytes of zeros as owner password (the
62              default TSS Well Known Secret), instead of prompting for an
63              owner password.
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SEE ALSO

67       tpm_version(1), tpm_setpresence(8), tpm_takeownership(8),
68       tpm_setactive(8), tcsd(8)
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REPORTING BUGS

72       Report bugs to <trousers-users@lists.sourceforge.net>
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76TPM Management                    2005-05-06                  tpm_setenable(8)
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