More Linux OS support Buildroot Buildroot is a tool that simplifies and automates the process of building a complete Linux system for an embedded system, using cross- compilation. In order to achieve this, Buildroot is able to generate a cross-compilation toolchain, a root filesystem, a Linux kernel image and a bootloader for your target. Buildroot can be used for any combination of these options, independently (you can for example use an existing cross-compilation toolchain, and build only your root filesystem with Buildroot). Buildroot is one of the OSs mainly supported by Firefly. For detailed compilation and usage tutorials, please refer to Firefly's "Buildroot Development Manual". Ubuntu 18.04 Ubuntu (Ubantu) is a Debian-based Linux operating system based on desktop applications. It is said that its name comes from the word "ubuntu" in Zulu or Xhosa in southern Africa, meaning "humanity", "my "Existence is because of everyone's existence", which is a traditional African value. **Users can experience the charm of Ubuntu system on Firefly board by querying "Firefly Ubuntu User Manual" . Ubuntu 20.04 Compared with the recent LTS predecessor Ubuntu 18.04, Ubuntu 20.04 brings many changes and obvious improvements. As time goes by, Canonical's future seems to have become milder and brighter, with better decorations. For all Ubuntu fans, we believe you will like this new version, you can find it in the link below. Yocto The Yocto Project (YP) is an open source collaboration project that helps developers create custom Linux-based systems regardless of the hardware architecture. The project provides a flexible set of tools and a space where embedded developers worldwide can share technologies, software stacks, configurations, and best practices that can be used to create tailored Linux images for embedded and IOT devices, or anywhere a customized Linux OS is needed. Firefly adapts the Yocto project to the board, and users can quickly develop it by viewing "Yocto Project Development Manual". Debian 10 The Debian project was founded by Ian Murdock in 1993 and is a truly free community project. Since then the project has developed into one of the largest and most influential open source projects. Thousands of volunteers from all over the world jointly create and maintain Debian software. Debian provides 70 languages and supports multiple computer types, so it calls itself a universal operating system. Due to the powerful versatility of Debian, Firefly has adapted Debian 10 for developers to use. Shiprock Centos 8 CentOS (Community Enterprise Operating System) is one of the Linux distributions. It is compiled from the source code released by Red Hat Enterprise Linux (RHEL) in accordance with the open source regulations. Since it comes from the same source code, some servers that require high stability use CentOS instead of the commercial version of Red Hat Enterprise Linux. Due to the powerful versatility of Centos, Firefly has adapted Centos 8 for developers to use. Shiprock