3. Create Bootable Media

In order to test an application, your device must be running the image and, of course, the application. To run the image, you need to create a bootable image that can be launched from an external device such as an SD card or USB stick.

The following list overviews the process.

  1. Insert your media into the appropriate build host interface (e.g. USB port).
  2. Determine the device name of your portable media (e.g. sdb).
  3. Write out the image using e.g. etcher , bmaptool or dd.

You can detailed steps for creating bootable images for several types of images in the following sections: