tss2_nvread(1)

NAME ✨

Okay so tss2_nvread(1) — straight from the General Commands Manual, bestie. The NAME line is literally tss2_nvread(1) - and then… nothing else. That's the whole section. We move. 💅

SYNOPSIS 🎀

tss2_nvread [OPTIONS]

SEE ALSO 🦋

• fapi-config(5) — use this to adjust Fapi parameters like the used cryptographic profile and TCTI, or directories for the Fapi metadata storages. 🫶
• fapi-profile(5) — use this to determine the cryptographic algorithms and parameters for all keys and operations of a specific TPM interaction, like the name hash algorithm, the asymmetric signature algorithm, scheme and parameters, and PCR bank selection. 👑

DESCRIPTION 💅

tss2_nvread(1) reads the entire data from an NV index of the TPM. The way that it does exactly that? Iconic. Slay. ✨

OPTIONS 🌸

These are the options, and yes, we're keeping every one — no cap:

• -f, --force — force overwriting the output file. 💥
• -o, --data=FILENAME or - (for stdout) — returns the value read from the NV space. 🫶
• -p, --nvPath=STRING — identifies the NV space to read. 🔍
• -l, --logData=FILENAME or - (for stdout) — returns the JSON encoded log, if the NV index is of type “extend” and an empty string otherwise. Optional parameter. 🎀

COMMON OPTIONS 👑

This collection of options is common to all tss2 programs and provides information that many users may expect. Highkey useful, ngl:

• -h, --help [man|no-man] — displays the tool's manpage. Here's the whole saga:
  • By default, it attempts to invoke the manpager for the tool; on failure, it will output a short tool summary.
  • This is the same behavior if the man option argument is specified.
  • However, if explicit man is requested, the tool will provide errors from man on stderr.
  • If the no-man option is specified, or the manpager fails, the short options will be output to stdout.
  • To successfully use the manpages feature requires the manpages to be installed or on MANPATH; see man(1) for more details. 📚
• -v, --version — displays version information for this tool, supported tctis and exit. 👋

EXAMPLE 🍓

A little example, served fresh — copy it exactly, iykyk:

tss2_nvread --nvPath=/nv/Owner/myNV --data=data.file

RETURNS ⭐

0 on success or 1 on failure. That's the whole return vibe, fr fr.

BUGS 💀

Github Issues — that's the section, bestie. No cap.

HELP 🫶

See the Mailing List.

License 📜

This work is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

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Cute sign-off: tpm2-tools • APRIL 2019 • tss2_nvread(1) 💖