SolidRun's i.MX8MP based HummingBoard Pulse build scripts

Introduction

Main intention of this repository is to produce a reference system for i.MX8MP based product evaluation. Automatic binary releases are available on our website IMX8MP_Images for download.

The build script provides ready to use Debian/Buildroot images that can be deployed on micro SD and future on eMMC.

Source code versions

• U-boot lf_v2022.04
• Linux kernel lf-5.15.y
• Buildroot 2020.11.2
• Debian bullseye

Compiling Image from Source

Configuration Options

The build script supports several customisation options that can be applied through environment variables:

• INCLUDE_KERNEL_MODULES: include kernel modules in rootfs
  • true (default)
  • false
• DISTRO: Choose Linux distribution for rootfs
  • buildroot (default)
  • debian
• BUILDROOT_VERSION
  • 2020.11.2 (default)
• BUILDROOT_DEFCONFIG: Choose specific config file name from config/ folder
  • buildroot_defconfig (default)
• BR2_PRIMARY_SITE: Use specific (local) buildroot mirror
• DEBIAN_VERSION
  • bullseye (default)
• DEBIAN_ROOTFS_SIZE
  • 936M (default)

Example

generating buildroot image

   ./runme.sh

generating debian image

   DISTRO=debian ./runme.sh

Build with Docker

A docker image providing a consistent build environment can be used as below:

1. build container image (first time only)

   docker build -t imx8mp_build docker
   # optional with an apt proxy, e.g. apt-cacher-ng
   # docker build --build-arg APTPROXY=http://127.0.0.1:3142 -t imx8mp_build docker

2. invoke build script in working directory

   docker run -i -t -v "$PWD":/work imx8mp_build -u $(id -u) -g $(id -g)

rootless Podman

Due to the way podman performs user-id mapping, the root user inside the container (uid=0, gid=0) will be mapped to the user running podman (e.g. 1000:100). Therefore in order for the build directory to be owned by current user, -u 0 -g 0 have to be passed to docker run.

Deploying

For SD card bootable images, plug in a micro SD into your machine and run the following, where sdX is the location of the SD card got probed into your machine -

umount /media/<relevant directory>
sudo dd if=images/microsd-<hash>.img of=/dev/sdX

And then set the HummingBoard Pulse DIP switch to boot from SD

Login

• username: root
• password: root