What Is Ext File System?

The extended file system, or ext, was implemented in April 1992 as the first file system created specifically for the Linux kernel. It has metadata structure inspired by traditional Unix filesystem principles, and was designed by Rémy Card to overcome certain limitations of the MINIX file system.

How does the ext file system work?

Understanding the Technology

VFS works as an abstract layer between the kernel and lower-level file systems. ... This file system implemented a data structure that includes inodes, which store information about files, directories, and other system objects. ext2 stores files as blocks of data on the hard disk.

What type of file system is Ext4?

The ext4 journaling file system or fourth extended filesystem is a journaling file system for Linux, developed as the successor to ext3.

Maya Lin-Takahashi

Maya Lin-Takahashi

Consumer Tech & Gadget Reviewer

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.