February 2026
Intermediate to advanced
456 pages
17h 3m
English
Content preview from Digital Forensics, Investigation, and Response 5E, 5th Edition
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Linux File Systems
This section provides details about Linux file systems.
Ext
Although there are other file systems, the Extended File System (Ext) is the one most commonly used with Linux. The current version is Ext4. The Ext4 file system can support volumes with sizes up to 1 exabyte (1018 bytes or 1 billion gigabytes) and single files with sizes up to 16 terabytes. These sizes are extremely large, indicating that there will not be a need for an update to Ext anytime soon.
The first two versions of Ext did not support journaling. Ext3 was the first to support journaling. Ext3 and Ext4 support three specific types of journaling. The most secure and safe level is called journal. With the journal level, metadata and file contents are written ...
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