3 docs tagged with "journaling"

A hands-on lab for creating a logical disk using a loopback device, formatting it with ext4, and exploring the initial filesystem structures like lost+found, the superblock, and metadata overhead.

Files deleted with `rm` don’t vanish instantly. Ext4 leaves behind traces — shadows on disk — that can sometimes be recovered with tools like debugfs. Let’s look behind the curtain.

A narrative walkthrough of what happens when you write a file to disk (through the page cache, extents, and journaling) and deletion with `rm`. Think "Lord of the Rings," but for inodes.