Creating custom Beaglebone Black image

me21 · June 22, 2022, 9:56pm

I found two approaches to generating custom Beaglebone Black image:

Use GitHub - beagleboard/image-builder: Image builder - this will create rootfs from scratch, installing required packages, but it will also install pre-built kernel and u-boot packages.
Use Debian: Getting Started with the BeagleBone Black - Linux Guides - Engineering and Component Solution Forum - TechForum │ Digi-Key - this will build u-boot and kernel from source, but download pre-created rootfs (tar.xz).

How can I combine these two approaches to build u-boot and kernel from sources, and also create rootfs from scratch?

RobertCNelson · June 22, 2022, 11:24pm

#2 is the output of #1… In your list above

Regards,

me21 · June 23, 2022, 3:53am

So I’ll have just to remove e.g. linux-image-4.19.94-ti-r73 and bb-u-boot-am335x-evm from repo_rcnee_pkg_list in the conf file, since I’ll build and install u-boot and kernel later myself?

RobertCNelson · June 23, 2022, 4:46am

#2 was built with this config…

github.com

beagleboard/image-builder/blob/master/configs/eewiki_minfs_debian_bullseye_armhf.conf

##
release="11.3"
image_type="minimal"
##
##Debootstrap: https://wiki.debian.org/Debootstrap
##
##debootstrap --arch=${deb_arch} --include=${deb_include} --exclude=${deb_exclude} \
##--components=${deb_components} --foreign ${deb_codename} /tmp/tmp.dir/ http://${deb_mirror}
##
deb_distribution="debian"
deb_codename="bullseye"
deb_arch="armhf"
deb_mirror=""
deb_components="main contrib non-free"
#
deb_include="	\
	avahi-utils	\
	bash-completion	\
	bc	\
	bsdmainutils	\

This file has been truncated. show original

So if that’s what you want to use.

me21 · June 23, 2022, 4:57pm

Thank you. When building the rootfs according to #1, there is the following line in configuration file:
repo_rcnee_pkg_version="4.19.94-ti-r73".

It enables installation of various kernel modules:

apt-get -y install libpruio-modules-${repo_rcnee_pkg_version} || true
apt-get -y install rtl8723bu-modules-${repo_rcnee_pkg_version} || true
apt-get -y install rtl8821cu-modules-${repo_rcnee_pkg_version} || true
apt-get -y install qcacld-2.0-modules-${repo_rcnee_pkg_version} || true

This requires kernel package to be installed.
However, if I supply my own kernel, I don’t need kernel package from the repository. Should I remove the line from the configuration and build these modules from source in this case?