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Luckfox Lyra Ultra

Luckfox Lyra by Luckfox Technology supports multiple operating systems, including Buildroot and Ubuntu 22.04. Please select the appropriate directory to begin your learning based on your requirements. The root file systems built with Buildroot and Ubuntu differ significantly in terms of design goals, content, flexibility, and size.

1. System Design Goals​

Buildroot is primarily aimed at embedded devices, focusing on minimalism and efficiency, including only the components needed to meet specific functional requirements. Its size typically ranges from a few MBs to hundreds of MBs. In contrast, Ubuntu is a general-purpose system designed for servers, offering rich functionality to support a wide range of hardware and user needs. Its size is considerably larger, with a full installation often reaching several GBs.

2. Package Management​

Buildroot does not feature runtime package management. All software is integrated into the file system during cross-compilation. Software updates require recompiling and repackaging the entire system. In contrast, Ubuntu uses APT as its package management tool, allowing online installation, updates, and uninstallation of software, making it more dynamic and user-friendly.

3. Service and Boot Management​

Buildroot file systems typically use the simple initialization system provided by BusyBox, with service startup primarily managed via scripts in /etc/init.d. This approach is straightforward and lightweight. Ubuntu, on the other hand, utilizes the powerful systemd system, which supports parallel service startup, dependency management, and dynamic control, meeting the needs of more complex environments.

4. Performance and Hardware Support​

The Buildroot file system is streamlined and optimized for minimal resource usage, making it highly suitable for embedded hardware. Hardware support in Buildroot is limited to the drivers required by the specific project, resulting in a smaller system footprint but potentially limited hardware compatibility. Ubuntu, by contrast, offers extensive hardware drivers and module support, providing greater adaptability at the cost of higher hardware resource requirements.

Additional Note: Given the limited resources of the board, both Buildroot and Ubuntu recommend developers use cross-compilation toolchains to compile programs and integrate them into the system.