compile-kernel

Kernel compilation and usage instructions

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This kernel can be used in Armbian and OpenWrt systems. For example amlogic-s9xxx-armbian, amlogic-s9xxx-openwrt, flippy-openwrt-actions and unifreq/openwrt_packit. It can be integrated when compiling firmware, or it can be installed into an existing system for use.

You can adjust the configuration of the kernel as needed, such as adding drivers and patches. It is also possible to compile personalized signature kernels with special meanings according to mood, such as 5.10.95-happy-new-year, 5.10.96-beijing-winter-olympics, 5.10.99-valentines-day and so on.

Local compilation

1. Install the necessary packages (The script has only been tested on Ubuntu-20.04-x86_64)

sudo apt-get update -y
sudo apt-get full-upgrade -y
sudo apt-get install -y $(curl -fsSL https://raw.githubusercontent.com/ophub/amlogic-s9xxx-armbian/main/compile-kernel/tools/script/ubuntu2004-armbian-depends)

2. Clone the repository to local: git clone --depth 1 https://github.com/ophub/amlogic-s9xxx-armbian.git

3. Enter the root directory of ~/amlogic-s9xxx-armbian, and then run sudo ./recompile -d -k 5.10.100 and other specified parameter commands to compile the kernel. The script will automatically download and install the compilation environment and kernel source code and make all settings. The packaged kernel file is stored in the compile-kernel/output directory.

• Description of local compilation parameters

Parameter	Meaning	Description
-d	Defaults	Compile all kernels with default configuration.
-k	Kernel	Specify kernel name, such as -k 5.10.100. Multiple kernels use _ to connect, such as - k 5.15.25_5.10.100
-a	AutoKernel	Set whether to automatically adopt the latest version of the kernel of the same series. When it is true, it will automatically find whether there is a newer version of the kernel specified in -k such as 5.10.100 of the series. If there is the latest version after 5.10.100, it will be automatically replaced with the latest version . When set to false, the specified version of the kernel will be compiled. Default value: true
-n	CustomName	Set the kernel custom signature. The default value is -meson64-dev and the generated kernel is 5.10.100-meson64-dev. Do not include spaces when setting a custom signature.
-r	Repo	Specifies the source code repository for the compiled kernel. Defaults to unifreq . You can choose the source code of kernel.org and the kernel source of github.com code repository. For example -r kernel.org or -r unifreq, etc., When using the kernel source code repository of github.com, the parameter format can be set to the three-item combination of owner/repo@branch , The owner name owner in the parameters is a required parameter, the kernel source code repository name /repo and the repository branch name @branch are optional parameters. When only the owner name owner parameter is specified, it will automatically match kernel source code repositories whose owner's name is in linux-5.x.y format and branch is main. If the repository name or branch name is different, use a combination, such as owner@branch or owner/repo or owner/repo@branch

• sudo ./recompile -d: Use the default configuration to compiled kernel.
• sudo ./recompile -d -k 5.10.100: Use the default configuration, and use the -k parameter to specify the kernel version to be compiled, and use _ to link when multiple versions are compiled at the same time.
• sudo ./recompile -d -k 5.10.100 -a true: Use the default configuration, and use the -a parameter to set whether to automatically upgrade to the latest kernel of the same series when compiling the kernel.
• sudo ./recompile -d -k 5.10.100 -n -good-luck: Use the default configuration, and use the -n parameter to set the kernel custom signature.
• sudo ./recompile -d -k 5.10.100 -r kernel.org: Use the default configuration, and set the kernel source code repository through the -r parameter.
• sudo ./recompile -d -k 5.15.25_5.10.100 -a true -n -good-luck -r kernel.org: Use the default configuration, and set through multiple parameters.

💡Tip: It is recommended to use the kernel source code of unifreq's 5.10, 5.15 and other repositories for compilation. He has added drivers and patches for related boxes. It is recommended to use the templates in tools/config, which have been pre-configured according to the relevant boxes and can be customized on this basis.

Compile with GitHub Action

1. Select Compile the kernel on the Action page. Click the Run workflow button.

2. Using Templates compile-kernel.yml. The code is as follows:

- name: Compile the kernel
  uses: ophub/amlogic-s9xxx-armbian@main
  with:
    build_target: kernel
    kernel_version: 5.15.25_5.10.100
    kernel_auto: true
    kernel_sign: -good-luck

• GitHub Action Input parameter description

The relevant parameters correspond to the local compilation commands, please refer to the above description.

Parameter	Defaults	Description
build_target	kernel	Fixed parameter kernel, set the compilation target to the kernel.
kernel_version	5.15.25_5.10.100	Specify kernel name, such as 5.10.100. Function reference -k
kernel_auto	true	Set whether to automatically adopt the latest kernel version of the same series. The default value is true. Function reference -a
kernel_sign	-meson64-dev	Set the kernel custom signature. The default is -meson64-dev. Function reference -n
kernel_repo	unifreq	Specifies the source code repository for the compiled kernel. The default is unifreq . Function reference -r
kernel_config	null	The default uses the configuration templates in the tools/config directory. You can set the directory where the compiled kernel configuration files are stored in your repository, such as kernel/config_path . The kernel configuration templates of each series stored in this directory must start with the name of config-5.x. For example, templates for compiling 5.10 series kernels can be named with various names starting with config-5.10, such as config-5.10, config-5.10.100 or config-5.10.100-good-luck, etc., When there are multiple files starting with config-5.10, the file with the highest version number will be used.

• GitHub Action Output variable description

Parameter	For example	Description
${{ env.PACKAGED_OUTPUTTAGS }}	5.15.25_5.10.100	The name of the compiled kernel
${{ env.PACKAGED_OUTPUTPATH }}	compile-kernel/output	kernel files storage path
${{ env.PACKAGED_OUTPUTDATE }}	2021.04.13.1058	compile date
${{ env.PACKAGED_STATUS }}	success	Compile status. success / failure

Kernel usage Instructions

This kernel can be used in Armbian and OpenWrt systems. Take ophub's project as an example.

Use on Armbian systems

The following describes how to integrate when compiling Armbian firmware and how to install it into an existing system.

• Compiling Armbian firmware with the kernel

Compiling Armbian firmware supports localized operations and online compilation using Actions from github.com. For details on how to use localized compilation, see: Local build instructions, For details on how to compile online with Actions: Use GitHub Action to build

• Install the kernel to an existing Armbian system

The compiled kernel can be installed into an existing Armbian system using the armbian-update command, For specific operation methods, please refer to: Update Armbian Kernel

Use in OpenWrt system

The following describes the integration when compiling the OpenWrt firmware and how to install it in an existing system.

• Compile OpenWrt firmware with kernel

Compiling OpenWrt firmware supports localized operations, as well as online compilation using Actions from github.com. For details on how to use localized compilation, see: Local build instructions, For details on how to compile online with Actions: Use GitHub Actions to build

• Install the kernel to an existing OpenWrt system

You can use the luci-app-amlogic plugin to install the compiled kernel into the existing OpenWrt system, For specific operation methods, please refer to: Update OpenWrt