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

8       tpm_setownable - change whether the TPM allows tpm_takeownership opera‐
9       tions
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SYNOPSIS

12       tpm_setownable [OPTION]
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DESCRIPTION

16       tpm_setownable reports the status of the TPM's flags regarding if the
17       TPM can be owned.  This is the default behavior and also accessible via
18       the --status option. Requesting a report of this status prompts for the
19       owner password.  The --allow option sets the system's TPM to allow
20       tpm_takeownership operations (via the TPM_SetOwnerInstall API).  This
21       operation requires physical presence.  The --prevent option (via the
22       TPM_SetOwnerInstall API) prevents the TPM from accepting
23       tpm_takeownership operations.  This operation requires physical
24       presence.  These operations are persistent.  tpm_takeownership requires
25       the tpm be enabled.
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28       -h, --help
29              Display command usage info.
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31       -v, --version
32              Display command version info.
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34       -l, --log [none|error|info|debug]
35              Set logging level.
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37       -u, --unicode
38              Use TSS UNICODE encoding for passwords to comply with
39              applications using TSS popup boxes
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41       -s, --status
42              Report the status of flags regarding if the TPM can be owned.
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44       -a, --allow
45              Allow tpm_takeownership operations.
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47       -p, --prevent
48              Prevent tpm_takeownership operations.
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50       -z, --well-known
51              Authenticate using 20 bytes of zeros as owner password (the
52              default TSS Well Known Secret), instead of prompting for an
53              owner password.
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SEE ALSO

57       tpm_version(1), tpm_takeownership(8), tpm_setpresence(8),
58       tpm_setenable(8), tcsd(8)
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REPORTING BUGS

62       Report bugs to <trousers-users@lists.sourceforge.net>
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66TPM Management                    2005-05-06                 tpm_setownable(8)
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