thecranston / asl_rpi_kernel_packager

Kernel packager for Raspberry Pi. Customized for ASL.

ASL_rpi_kernel_packager

Kernel packager for Raspberry Pi. Customized for ASL.

This repository contains the build scripts and patches necessary to automatically build a set of kernel packages for the Raspberry Pi using RaspberryOS (Raspbian) sources. Unlike the original kernel packages, I've chosen to build separate packages for each of the 3 Raspberry Pi types and a metapackage that replaces/provides the official kernel package. I've worked around the issue of cross-compiling helper scripts that seems to plague most cross-compiled header packages by quickly cross-compiling the scripts after the kernel build, but before packaging.

The main build script takes care of downloading the cross-compilation tools, libraries, and kernel source. There are certainly some build depencdencies that I don't remember right now and will have to document later. Start with the standard kernel build/packaging dependencies.

This particular version is customized for ASL (AllStarLink) and includes the OSS kernel modules necessary for chan_usbradio and chan_simpleusb. This is a stop-gap measure until those channel modules can be migrated to Alsa.

To use this packager, clone the repository and run the main build script:

./build_rpi_kernel_package.sh {tag}

Where {tag} is the tagged version of the RaspberryOS kernel repository you'd like to target. The current list of tags is available at https://github.com/raspberrypi/linux/tags

As of this writing, the most current tag is raspberrypi-kernel_1.20200811-1

Building with docker

docker run -it debian:buster /bin/bash

apt update && apt install -y build-essential git equivs \
wget \
apt-utils \
flex \
bison \
bc rsync kmod cpio libssl-dev:native

git clone https://github.com/ajpaul25/ASL_rpi_kernel_packager.git

cd ASL_rpi_kernel_packager
./build_rpi_kernel_package.sh raspberrypi-kernel_1.20200811-1