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Image Builder Profile Configuration

Image Builder profiles are managed in profiles directory. Any profile file can be copied to the repo root directory with profile file.

i.e

profiles/default is default profile template configuration. To use default profiles template.

cp profiles/default profile

Environment Variables

profile file has predefined env variables which are being used in onion_buildenv script to manage all its actions.

Variable Default Value Description
OPENWRT_VERSION 22.03.2 OpenWrt Release Version
TARGET ramips SDK to compile packages for target
SUBTARGET mt76x8 SDK to compile packages for subtarget
BASE_URL https://downloads.openwrt.org/releases/$OPENWRT_VERSION/targets/$TARGET/$SUBTARGET Root URL of SDK for specificed target and subtarget
IMAGE_BUILDER_FILE openwrt-imagebuilder-$OPENWRT_VERSION-$TARGET-$SUBTARGET.Linux-$(uname -p).tar.xz Image Builder file to be downloaded from BASE_URL
IMAGE_BUILDER_URL $BASE_URL/$SDK_FILE Full Image Builder download URL
ADDITIONS_DIR $PWD/additions Location of addinational files to be copied into imagebuilder dir
PACKAGE_REPOS src/gz onion http://repo.onioniot.com/omega2/packages/openwrt-$OPENWRT_VERSION/onion Appends lines to repositories.conf in the downloaded OpenWRT Image Builder.
Each feed must be in a new line
IMAGE_BUILDER_PACKAGES onion-repo-keys
omega2-base
omega2-base-files
omega2-base-passwd		 Packages to be included in firmware. Each package must be in a new line
BUILD_MODELS onion_omega2
onion_omega2p		 Onion Models firmware to be compiled when onion_buildenv build_all_firmware is triggered. Each model must be in a new line

Onion Image Builder Build Environment

profile file is used with onion_buildenv script. onion_buildenv is all in one script that makes build process simple and customization can be done in profile file only. onion_buildenv provides few subcommands that can be used to setup sdk and compile packages.

subcommand Description
setup_imagebuilder Download and setup imagebuilder with files, keys and packages
update_imagebuilder Update repositories into imagebuilder
clean_imagebuilder Cleanup image builder from local directory
list_packages List all available packages, Internally it uses ./scripts/feeds list
build_firmware <model> Build firmware for model passed in argument
build_all_firmware Build firmware for all the models specified in var BUILD_MODELS

Use custom feed for local/alternative development

During development, there might be a need to pull compiled packages from a local source.

In that case, change the value of PACKAGE_REPOS

PACKAGE_REPOS="
src-link custom <FEED-DIRECTORY-HERE>
"

And run the bash onion_buildenv setup_imagebuilder script again.