Liangxu Linux

Jun 23, 2025 · Fundamentals

How to Build a Minimal Root Filesystem for Embedded Linux with BusyBox

This guide explains how to create a minimal root filesystem for an embedded Linux board using BusyBox, covering flash file system options, required directory structure, cross‑compilation setup, building and installing BusyBox, adding init scripts, creating a ramdisk image, and configuring U‑Boot to boot from NFS or ramdisk.