dumpimage - Man Page

dumpimage lists and extracts data from U-Boot images. If -l is specified, dumpimage lists the components in image. Otherwise, dumpimage extracts the component at position to outfile.

-h

Print usage information and exit.

-l

Print the header information for image, including a list of components.

-o outfile

The file to write the dumped component to.

-p position

Specify the position of the component to dump. This should be a numeric index, starting at 0. If not specified, the default position is 0.

-T type

Specify the type of the image. If not specified, the image type will be automatically detected. A list of supported image types may be printed by running mkimage -T list.

-V

Print version information and exit.

Please report bugs to the U-Boot bug tracker.

Create a multi-file image and then extract part of that image

$  mkimage -A x86 -O linux -T multi -n x86 \
-d vmlinuz:initrd.img:System.map multi.img
Image Name:   x86
Created:      Thu Jul 25 10:29:13 2013
Image Type:   Intel x86 Linux Multi-File Image (gzip compressed)
Data Size:    13722956 Bytes = 13401.32 kB = 13.09 MB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB
   Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB
   Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB
$  dumpimage -p 2 -o System.map multi.img

mkimage(1)

mkimage(1).