No option is right for all use cases, and I hope to present enough details to direct your decision. I won't teach you how to use any of them there are plenty of in-depth online learning resources once you have narrowed your choices.
I will give a flavor for what it's like to work with each and provide enough information to help readers decide which tool to use for their design. In this article, I will present a survey of four commonly available options for building embedded Linux systems.
Typically, the build output will consist of an entire software image for the target device, including the kernel, device drivers, libraries, and application software (and sometimes the bootloader). Development workflows are very different for embedded developers vs. They may use different chip architectures, software stacks, and even operating systems. The development environment in embedded systems programming is usually very different from the testing and production environments. Free online course: RHEL Technical Overview.Its primary role is to serve as an appliance of some sort, and it is not considered a general-purpose computing platform. I find it simple enough to say that an embedded system is a computer that most people don't think of as a computer. Wikipedia defines an embedded system as: "A computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints." Tools such as VirtualBox and Docker allow even better alignment between development, testing, and productions environments. When building Linux software for desktop and enterprise-class devices, developers typically use a desktop distribution such as Ubuntu on their build machines to have an environment as close as possible to the one where the software will be deployed. It also powers consumer electronics, mobile phones, and many Internet of Things devices.
It is used in large enterprise data centers, internet infrastructure devices, and personal development systems. The variety of supported chip architectures is astounding and has led to Linux in devices large and small from huge IBM mainframes to tiny devices no bigger than their connection ports and everything in between. Linux is being deployed into a much wider array of devices than Linus Torvalds anticipated when he was working on it in his dorm room.
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