Liangxu Linux

Apr 14, 2021 · Fundamentals

Designing a Simple Ext2‑Like File System from Scratch

This tutorial walks through building a tiny 1 MB file system using 1 KB blocks, block bitmaps, 128‑byte inodes, superblocks, directory structures, and single‑ and double‑indirect indexing, culminating in a design comparable to Linux's ext2 filesystem.