File Development System

A robust custom-built file system supporting file creation, deletion, reading, and writing, as well as directory traversal and management. It implements key operating system concepts such as volume control blocks (VCB), free space management via a bitmap, directory structures, and file control blocks (FCBs). Designed for efficiency and correctness, the project simulates real-world file system operations with persistent storage and memory synchronization.

C Programming LanguageLinux (Ubuntu) EnvironmentMakefile for Build AutomationHexdump for Debugging Storage

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Note: Documentation is available; a live demo is not hosted for this project.

Project Features

📁

Custom File Management

Implements file creation, deletion, open/close, read, write, and metadata tracking within a simulated volume.

👥

Directory Support

Supports hierarchical directory creation, navigation, and removal with '.' and '..' references handled correctly.

🔍

Bitmap Free Space Tracking

Manages allocation and deallocation of disk blocks efficiently using a bitmap-based free space map.

🔒

Persistence & Reliability

Ensures volume data and directory states persist across program runs with proper memory cleanup and disk synchronization.

Project Info

Duration

06/2024 – 07/2024

Role

Operating System Developer

Team Size

4 members

Status

Completed

Technologies Used

• C Programming Language
• Linux (Ubuntu) Environment
• Makefile for Build Automation
• Hexdump for Debugging Storage
• GitHub Collaboration
• Volume Control Block (VCB)
• Free Space Bitmap
• File Control Block (FCB)

Project Gallery

VCB & Initialization

Volume control block setup with magic number and free space pointer.

Directory Traversal

Navigation with ls, cd, and pwd commands in the custom shell.

File Creation

Touch and mkdir commands creating and persisting files/directories.

Read & Write

b_write and b_read functions handling buffered file I/O.

Hexdump Analysis

Block-level inspection verifying VCB, bitmap, and directory entries.

Git Version Control

Project maintained with Git commands such as `git add .`, `git commit -m "message"`, and `git push` for collaborative development and version tracking.

Final Demo

Completed file system demonstrating all commands and persistence.

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