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authorJörg Frings-Fürst <jff@merkur>2014-05-19 19:33:50 +0200
committerJörg Frings-Fürst <jff@merkur>2014-05-19 19:33:50 +0200
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+.TH VPDDECODE 8 "February 2007" "dmidecode"
+.SH NAME
+vpddecode \- \s-1VPD\s0 structure decoder
+.SH SYNOPSIS
+.B vpddecode
+.RB [ OPTIONS ]
+
+.SH DESCRIPTION
+.B vpddecode
+prints the "vital product data" information that can be found in almost
+all IBM and Lenovo computers. Available items are:
+.IP \(bu "\w'\(bu'u+1n"
+\s-1BIOS\s0 Build \s-1ID\s0
+.IP \(bu
+Box Serial Number
+.IP \(bu
+Motherboard Serial Number
+.IP \(bu
+Machine Type/Model
+
+.PP
+Some systems have these additional items:
+.IP \(bu "\w'\(bu'u+1n"
+BIOS Release Date
+.IP \(bu
+Default Flash Image File Name
+
+.PP
+Note that these additional items are not documented by IBM, so this is
+guess work, and as such should not be blindly trusted. Feedback about
+the accuracy of these labels is welcome.
+
+.SH OPTIONS
+.TP
+.BR "-d" ", " "--dev-mem FILE"
+Read memory from device \fBFILE\fR (default: \fB/dev/mem\fR)
+.TP
+.BR "-s" ", " "--string KEYWORD"
+Only display the value of the \s-1VPD\s0 string identified by \fBKEYWORD\fR.
+\fBKEYWORD\fR must be a keyword from the following list: \fBbios-build-id\fR,
+\fBbox-serial-number\fR, \fBmotherboard-serial-number\fR,
+\fBmachine-type-model\fR, \fBbios-release-date\fR.
+Each keyword corresponds to an offset and a length within the \s-1VPD\s0
+record.
+Not all strings may be defined on all \s-1VPD\s0-enabled systems.
+If \fBKEYWORD\fR is not provided or not valid, a list of all valid
+keywords is printed and
+.B vpddecode
+exits with an error.
+This option cannot be used more than once.
+Mutually exclusive with \fB--dump\fR.
+.TP
+.BR "-u" ", " "--dump"
+Do not decode the VPD records, dump their contents as hexadecimal instead.
+Note that this is still a text output, no binary data will be thrown upon
+you. ASCII equivalent is displayed when possible. This option is mainly
+useful for debugging.
+Mutually exclusive with \fB--string\fR.
+.TP
+.BR "-h" ", " "--help"
+Display usage information and exit
+.TP
+.BR "-V" ", " "--version"
+Display the version and exit
+
+.SH FILES
+.I /dev/mem
+.SH AUTHOR
+Jean Delvare
+.SH "SEE ALSO"
+.BR biosdecode (8),
+.BR dmidecode (8),
+.BR mem (4),
+.BR ownership (8)