---
name: "dumpimage"
section: "1"
platform: "linux"
package: "uboot-tools"
version: "2026.07-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/dumpimage"
---

# dumpimage(1)

extract data from U-Boot images

## NAME

dumpimage - extract data from U-Boot images

## SYNOPSIS

**dumpimage** \[**-T** *type*\] **-l** *image*

**dumpimage** \[**-T** *type*\] \[**-p** *position*\] **-o** *outfile* *image*

**dumpimage** **-h**

**dumpimage** **-V**

## DESCRIPTION

**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*.

## OPTIONS

- **-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.

## BUGS

Please report bugs to the U-Boot bug tracker ⟨https://\\:source\\:.denx\\:.de/\\:u-boot/\\:u-boot/\\:issues⟩.

## EXAMPLES

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
```

## SEE ALSO

[**mkimage**(1)](/mkimage/1.md)