1tss2_nvwrite(1) General Commands Manual tss2_nvwrite(1)
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6 tss2_nvwrite(1) -
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9 tss2_nvwrite [OPTIONS]
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12 fapi-config(5) to adjust Fapi parameters like the used cryptographic
13 profile and TCTI or directories for the Fapi metadata storages.
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15 fapi-profile(5) to determine the cryptographic algorithms and parame‐
16 ters for all keys and operations of a specific TPM interaction like the
17 name hash algorithm, the asymmetric signature algorithm, scheme and pa‐
18 rameters and PCR bank selection.
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21 tss2_nvwrite(1) - This command writes data to a “regular” (not pin, ex‐
22 tend or counter) NV index. Only the full index can be written, partial
23 writes are not allowed. If the provided data is smaller than the NV
24 index’s size, then it is padded up with zero bytes at the end.
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27 These are the available options:
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29 • -i, --data=FILENAME or - (for stdin):
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31 The data to write to the NV space.
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33 • -p, --nvPath=STRING:
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35 Identifies the NV space to write to.
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38 This collection of options are common to all tss2 programs and provide
39 information that many users may expect.
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41 • -h, --help [man|no-man]: Display the tools manpage. By default, it
42 attempts to invoke the manpager for the tool, however, on failure
43 will output a short tool summary. This is the same behavior if the
44 “man” option argument is specified, however if explicit “man” is re‐
45 quested, the tool will provide errors from man on stderr. If the
46 “no-man” option if specified, or the manpager fails, the short op‐
47 tions will be output to stdout.
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49 To successfully use the manpages feature requires the manpages to be
50 installed or on MANPATH, See man(1) for more details.
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52 • -v, --version: Display version information for this tool, supported
53 tctis and exit.
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56 tss2_nvwrite --nvPath=/nv/Owner/myNV --data=data.file
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59 0 on success or 1 on failure.
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62 Github Issues (https://github.com/tpm2-software/tpm2-tools/issues)
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65 See the Mailing List (https://lists.linuxfoundation.org/mailman/listin‐
66 fo/tpm2)
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70tpm2-tools APRIL 2019 tss2_nvwrite(1)