---
name: "mkuboot"
section: "8"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/mkuboot"
---

# mkuboot(8)

create U-Boot files

## NAME

**mkuboot** – create U-Boot files

## SYNOPSIS

**mkuboot** \[**-a** *arch*\] \[**-e** *entry*\] \[**-l** *loadaddr*\] \[**-n** *name*\] \[**-o** *os*\] \[**-t** *type*\] *infile* *outfile*

## DESCRIPTION

The **mkuboot** utility creates images suitable for loading using the U-Boot bootloader.

The options are as follows:

- **-a** *arch*

  Sets the image architecture to *arch*. For a list of valid arguments, see below.

- **-e** *entry*

  Sets the entry point to *entry*.

- **-l** *loadaddr*

  Sets the load address to *loadaddr*.

- **-n** *name*

  Sets the name of the loaded object inside the generated image.

- **-o** *os*

  Sets the image OS to *os*. *os* can be either “Linux” or “OpenBSD”.

- **-t** *type*

  Sets the type of the object to be loaded. For a list of valid arguments, see below.

The following arguments are valid as the *arch* parameter:

```
aarch64
alpha
amd64
arm
i386
m68k
mips
mips64
powerpc
sparc
sparc64
superh
```

The following arguments are valid as the *type* parameter:

```
standalone
kernel
script
```

## HISTORY

An **mkuboot** utility first appeared in OpenBSD 4.4 as **mkboot**.