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Different people want to reduce the size of the Linux kernel for different reasons. This page holds a few use cases for a small Linux kernel, as a means of illustrating some of the requirements and possibilities for this "feature" of the kernel.
Linux as a bootloader
Linux can be used on some devices at the primary bootloader. The size requirements on the first-stage bootloader are more stringent than for the ultimate running operating system.
There are projects along these lines, such as the [http://barebox.org/ barebox project] (is this right?)
Requirements
* want a small flash and ram footprint (how small?) * depending on the platform, may need to read the "main" filesystem of the machine
Linux in the Internet of Things
(someone should fill this part in…)
