This article walks readers through Linux file‑system fundamentals, explains the role of the Virtual File System (VFS), dives deep into ext2 structures such as superblocks, group descriptors, block and inode bitmaps, and provides complete C code for reading file contents directly by inode number.
This article guides readers through Linux file system fundamentals, explaining the role of the virtual file system (VFS), detailed structures of the ext2 superblock, group descriptors, block and inode bitmaps, and provides C code examples for extracting and reading file data directly via inode numbers.
This article walks through the step‑by‑step design of a simple file system on a 1 TB disk, introducing logical blocks, block bitmaps, inode structures, directory handling, indirect indexing, superblocks, and hierarchical file organization, while comparing the design to the classic ext2 filesystem.
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.
This article explains Linux's file system architecture, covering basic directory structures, absolute and relative paths, symbolic links, the Virtual File System layer, core system calls such as creat, open, read, write, lseek, locking mechanisms, and the design of ext2, ext4, /proc, and NFS file systems.
This article provides a comprehensive overview of Linux file system architecture, covering basic concepts, directory structures, absolute and relative paths, linking, VFS abstraction, ext2/ext4 implementations, locking mechanisms, key system calls, and network file systems like NFS, illustrating how they interact within the kernel.
A file containing just one byte still consumes 4KB of disk space due to filesystem block allocation, plus inode and directory overhead.
