December 2018
Beginner to intermediate
328 pages
8h 29m
English
Content preview from Learning Android Forensics - Second Edition
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Media-based filesystems
Besides the previously discussed flash memory filesystems, Android devices typically support the following media-based filesystems:
- EXT2/EXT3/EXT4 (EXTended filesystem), which was introduced in 1992 specifically for the Linux kernel, was one of the first filesystems and used the virtual filesystem. EXT2, EXT3, and EXT4 are the subsequent versions. Journaling is the main advantage of EXT3 over EXT2. With EXT3, in the case of an unexpected shutdown, there is no need to verify the filesystem. The EXT4 filesystem, the fourth extended filesystem, has gained significance with mobile devices implementing dual-core processors. The YAFFS2 filesystem is known to have a bottleneck on dual-core systems. With the Gingerbread version ...
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