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(EXTended file system) The first file system developed exclusively for the Linux operating system. Introduced in 1992, the limits of the Minix file system originally used in Linux were greatly increased: volume size from 64MB to 2GB, and file names from 14 to 255 characters. Ext also introduced a virtual file system (VFS) interface, which allows different underlying architectures to be used.

ext2, ext3, ext4
In 1993, ext2 added the traditional Unix inode and other features of the Unix File System (see inode and UFS). Maximum volume size jumped to 32TB.

Introduced in 2001, the major enhancement to ext3 was three levels of journaling, the most robust of which duplicates the indexes and file contents in the journal before updating the actual file system (see journaling file system). See file system.

In 2008, ext4 added several enhancements for large files: maximum volume size increased to one exabyte and file size to 16TB.


On drawings, abbr. for “exterior.”
References in periodicals archive ?
Easy to use: Mount any Ext2, Ext3, Ext4 drives like it is part of the native Windows file system
The test was conducted on seven Samsung smartphones with rooted Android capability and emphasis on YAFFS2 and Ext4 files.
Unlike basic file systems such as ext4 and TexFAT, Reliance Nitro is capable of monitoring both user data and metadata to detect inconsistencies and provide early warning of imminent flash failure and/or data corruption.
AD1, E01, YAFFS, YAFFS2, EXT, EXT2, EXT3, EXT4, DD and more.
By default Fedora creates separate /boot, root and /home ext4 partitions and uses LVM (Logical Volume Management) which will make for a more extensible hard disk configuration.
The ROM is based on EXT4 file system, which is reportedly more than twice as fast as earlier versions, and brings a cool new interface and exciting features onboard.
EXT3, EXT4, NTFS, and HFS+ file systems are supported to ensure compatibility with Windows, Mac[R] OS X, and Linux operating systems.
38, which includes: - AppArmor support in Kernel for improved security - Support for Intel's Intelligent Power Sharing (IPS) - filesystem improvements to btrfs, Ext4 and XFS - driver updates and hardware support updates libvirt, the virtualisation API updated with extensive bug fixes and feature updates.
It comes with the faster file system EXT4 that is said to be two times faster than the Xperia U's default system.
Process and analyze DMG (compressed and uncompressed), Ext4, exFAT, VxFS (Veritas File System), Microsoft VHD (Microsoft Virtual Hard Disk), and Blackberry IPD backup files.