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+.TH VPDDECODE 8 "February 2007" "dmidecode"
+.\"
+.SH NAME
+vpddecode \- \s-1VPD\s0 structure decoder
+.\"
+.SH SYNOPSIS
+.B vpddecode
+.RI [ 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 \fIFILE\fP"
+Read memory from device \fIFILE\fP (default: \fI/dev/mem\fP)
+.TP
+.BR "-s" ", " "--string \fIKEYWORD\fP"
+Only display the value of the \s-1VPD\s0 string identified by \fIKEYWORD\fP.
+It must be a keyword from the following list:
+.nh
+.BR bios-build-id ,
+.BR box-serial-number ,
+.BR motherboard-serial-number ,
+.BR machine-type-model ,
+.BR bios-release-date .
+.hy
+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 \fIKEYWORD\fP 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\fP.
+.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\fP.
+.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)