mirror of
https://github.com/AsahiLinux/u-boot
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104 lines
2 KiB
Groff
104 lines
2 KiB
Groff
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.\" SPDX-License-Identifier: GPL-2.0
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.\" Copyright (C) 2022 Sean Anderson <seanga2@gmail.com>
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.TH DUMPIMAGE 1 2022-06-11 U-Boot
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.SH NAME
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dumpimage \- extract data from U-Boot images
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.
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.SH SYNOPSIS
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.SY dumpimage
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.OP \-T type
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.BI \-l\~ image
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.YS
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.SY dumpimage
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.OP \-T type
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.OP \-p position
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.BI \-o\~ outfile
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.I image
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.YS
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.SY dumpimage
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.B \-h
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.YS
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.SY dumpimage
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.B \-V
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.YS
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.
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.SH DESCRIPTION
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.B dumpimage
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lists and extracts data from U-Boot images. If
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.B \-l
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is specified,
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.B dumpimage
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lists the components in
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.IR image .
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Otherwise,
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.B dumpimage
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extracts the component at
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.IR position " to " outfile .
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.
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.SH OPTIONS
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.TP
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.B \-h
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Print usage information and exit.
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.
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.TP
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.B \-l
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Print the header information for
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.IR image ,
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including a list of components.
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.
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.TP
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.BI \-o " outfile"
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The file to write the dumped component to.
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.TP
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.BI \-p " position"
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Specify the
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.I position
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of the component to dump. This should be a numeric index, starting at 0. If not
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specified, the default
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.I position
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is 0.
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.
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.TP
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.BI \-T " type"
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Specify the
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.I type
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of the image. If not specified, the image type will be automatically detected. A
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list of supported image types may be printed by running
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.BR "mkimage\~\-T\~list" .
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.
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.TP
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.B \-V
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Print version information and exit.
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.
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.SH BUGS
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Please report bugs to the
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.UR https://\:source\:.denx\:.de/\:u-boot/\:u-boot/\:issues
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U-Boot bug tracker
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.UE .
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.SH EXAMPLES
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Create a multi-file image and then extract part of that image
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.PP
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.EX
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.in +4
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$ \c
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.B mkimage \-A x86 \-O linux \-T multi \-n x86 \\\\\&
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.in +4
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.B \-d vmlinuz:initrd.img:System.map multi.img
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.in
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Image Name: x86
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Created: Thu Jul 25 10:29:13 2013
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Image Type: Intel x86 Linux Multi-File Image (gzip compressed)
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Data Size: 13722956 Bytes = 13401.32 kB = 13.09 MB
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Load Address: 00000000
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Entry Point: 00000000
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Contents:
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Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB
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Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB
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Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB
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$ \c
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.B dumpimage -p 2 -o System.map multi.img
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.EE
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.in
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.SH SEE ALSO
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.BR mkimage (1)
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