Blame man/vpddecode.8

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.TH VPDDECODE 8 "February 2007" "dmidecode"
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.SH NAME
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vpddecode \- \s-1VPD\s0 structure decoder
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.SH SYNOPSIS
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.B vpddecode
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.RB [ OPTIONS ]
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.SH DESCRIPTION
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.B vpddecode
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prints the "vital product data" information that can be found in almost
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all IBM and Lenovo computers. Available items are:
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.IP \(bu "\w'\(bu'u+1n"
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\s-1BIOS\s0 Build \s-1ID\s0
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.IP \(bu
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Box Serial Number
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.IP \(bu
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Motherboard Serial Number
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.IP \(bu
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Machine Type/Model
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.PP
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Some systems have these additional items:
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.IP \(bu "\w'\(bu'u+1n"
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BIOS Release Date
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.IP \(bu
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Default Flash Image File Name
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.PP
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Note that these additional items are not documented by IBM, so this is
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guess work, and as such should not be blindly trusted. Feedback about
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the accuracy of these labels is welcome.
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.SH OPTIONS
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.TP
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.BR "-d" ", " "--dev-mem FILE"
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Read memory from device \fBFILE\fR (default: \fB/dev/mem\fR)
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.TP
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.BR "-s" ", " "--string KEYWORD"
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Only display the value of the \s-1VPD\s0 string identified by \fBKEYWORD\fR.
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\fBKEYWORD\fR must be a keyword from the following list: \fBbios-build-id\fR,
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\fBbox-serial-number\fR, \fBmotherboard-serial-number\fR,
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\fBmachine-type-model\fR, \fBbios-release-date\fR.
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Each keyword corresponds to an offset and a length within the \s-1VPD\s0
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record.
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Not all strings may be defined on all \s-1VPD\s0-enabled systems.
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If \fBKEYWORD\fR is not provided or not valid, a list of all valid
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keywords is printed and
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.B vpddecode
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exits with an error.
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This option cannot be used more than once.
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Mutually exclusive with \fB--dump\fR.
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.TP
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.BR "-u" ", " "--dump"
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Do not decode the VPD records, dump their contents as hexadecimal instead.
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Note that this is still a text output, no binary data will be thrown upon
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you. ASCII equivalent is displayed when possible. This option is mainly
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useful for debugging.
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Mutually exclusive with \fB--string\fR.
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.TP
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.BR "-h" ", " "--help"
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Display usage information and exit
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.TP
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.BR "-V" ", " "--version"
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Display the version and exit
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.SH FILES
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.I /dev/mem
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.SH AUTHOR
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Jean Delvare
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.SH "SEE ALSO"
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.BR biosdecode (8),
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.BR dmidecode (8),
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.BR mem (4),
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.BR ownership (8)