This course "Linux Kernel Filesystem Development " offers a comprehensive guide to crafting a Linux kernel filesystem from the ground up. Participants will delve into essential components such as constructing commands and kernel modules, loading and unloading modules, and mounting and unmounting filesystems. From basic file operations like creation and deletion to more intricate tasks such as reading and writing files, every aspect of filesystem development is covered.
Through practical instruction and hands-on exercises, learners will grasp fundamental concepts like filesystem/kernel interactions and debugging techniques using tools like printk and gdb/KGDB. Linux Kernel Filesystem Development emphasizes a systematic approach to filesystem construction, highlighting the critical sequence of operations and the importance of error handling.
Featuring the SPFS filesystem—a succinct 2300 lines of code—participants will explore real-world examples and intentional errors designed to enhance comprehension. Additionally, the course "Linux Kernel Filesystem Development" is complemented by a free 450-page online resource, offering in-depth insights and guidance for Linux kernel filesystem development.
Linux Kernel Filesystem Development Table of Contents:
- Understand the data flow from Linux user processes to the kernel's VFS layer and the intricate interaction between the kernel and the filesystem.
- Master the creation of a loadable kernel module alongside essential supporting commands like mkfs and fsdb.
- Learn how to incorporate additional files onto disks during the mkfs process.
- Construct a disk-based filesystem from scratch by comprehending the sequential steps to be followed and the prioritized order for executing operations.
- Explore the procedures for mounting and unmounting a filesystem, while gaining proficiency in handling all file and directory operations including those involving directories, regular files, hard links, and symbolic links.
- Become experienced in kernel debugging methodologies, ranging from basic utilization of printk calls to advanced source-level debugging using gdb/KGDB.
Who is this course for?
- Experienced developers who want to learn about building filesystems in Linux kernel development
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