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Title "tpm_nvread 8" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
tpm_nvread Header "SYNOPSIS" \fBtpm_nvread [\s-1OPTIONS\s0] Header "DESCRIPTION" \fBtpm_nvread reads data from an \s-1NVRAM\s0 area and either displays them or writes them into a file. The user must provide the index of the \s-1NVRAM\s0 area. If the user provided the number of bytes to read then this will be the maximum number of bytes that will be read from the \s-1NVRAM\s0 area, otherwise the whole \s-1NVRAM\s0 area will be read. Some \s-1NVRAM\s0 areas only allow read sizes of zero, i.e., \s-1NVRAM\s0 area with index 0. Optionally an offset into the \s-1NVRAM\s0 area can be given where the reading of the data is to start. If the \s-1NVRAM\s0 area has permission bits set that require owner or \s-1NVRAM\s0 area authentication, then the password must be provided via the password option.

The following options are supported:

Item "-h, --help" Display command usage info. Item "-v, --version" Display command version info. Item "-l, --log [none|error|info|debug]" Set logging level. Item "-u, --unicode" Use \s-1TSS\s0 \s-1UNICODE\s0 encoding for passwords to comply with applications using \s-1TSS\s0 popup boxes Item "-z, --well-known" Use a secret of all zeros (20 bytes of zeros) as either the \s-1NVRAM\s0 area or owner secret. Item "-p, --password" Depending on what type of authentication is required for the \s-1NVRAM\s0 area, this must either be the \s-1NVRAM\s0 area or owner password. .Sp A password may be directly provided for example by using '--password=password' or '-ppassword'. If no password is provided then the program will prompt the user for the password. Item "-i, --index" The index of the \s-1NVRAM\s0 area. The parameter may either be a decimal number or a hexadecimal number starting with '0x'. Item "-s, --size" The number of bytes to read from the \s-1NVRAM\s0 area. The parameter may either be a decimal number or a hexadecimal number starting with '0x'. Item "-n, --offset (optional parameter)" The offset into the \s-1NVRAM\s0 area from where to start reading. The parameter may either be a decimal number or a hexadecimal number starting with '0x'. Item "-f, --filename (optional parameter)" The name of a file the read data will be written into. If no filename is given the data will be printed to stdout. Header "SEE ALSO" \fBtpm_nvdefine(8), tpm_nvinfo(8), tpm_nvrelease(8), tpm_nvwrite(8) Header "REPORTING BUGS" Report bugs to <trousers-users@lists.sourceforge.net>