Boot Image Layout

Bootgen User Guide (UG1283)

Document ID
Release Date
2021.2 English

This section describes the format of the boot image for different architectures.

Building a boot image involves the following steps:

  1. Create a BIF file.
  2. Run the Bootgen executable to create a boot image.
    Note: For the Quick Emulator (QEMU) you must convert the binary file to an image format corresponding to the boot device.

The input files are not necessarily different for each device (for example, for every device, elfs can be input files that can be part of the boot image), but the format of the boot image is different. The following topics describe the required format of the boot header, image header, partition header, initialization, and authentication certificate header for each device.