1tpm_setenable(8) System Manager's Manual tpm_setenable(8)
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5 TPM Management - tpm_setenable
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8 tpm_setenable - change TPM enable states
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11 tpm_setenable [OPTION]
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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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67 tpm_version(1), tpm_setpresence(8), tpm_takeownership(8),
68 tpm_setactive(8), tcsd(8)
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72 Report bugs to <trousers-users@lists.sourceforge.net>
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76TPM Management 2005-05-06 tpm_setenable(8)