installation:

The root filesystem is a small, essential portion of disk storage, providing functionality to expand its resources to use storage other than the root itself, and configure system operations. The root usually survives intact when a system crash occurs, allowing system operation during recovery.

A breakdown of the various uses of the root filesystems, and the considerations for each as we prove out the operation of the system step by step.

Portions of the root allow the kernel to be installed as the fundamental component of the operating system. These standalone programs occupy space within the root filesystem.

Whats different about operating systems like Unix that use a root filesystem, and other systems that don't require a filesystem to be mounted initially to operate?