Chapter 4. Alternative File Systems
The most common file system for Linux is currently the ext2 file system, written by Réme Card as an alternative to the Minix file system. It is used as the basis for most distributions and appliances; anything that needs a file system can use ext2. Ext2 as a file system is robust and mature enough to be the back end for stable production use.
Ext2, although stable for most needs, does not support journaling. Journaling, basically, is the process of recording changes made by file system writes. When implemented properly, journaling can enable the system to avoid fsck altogether when coming up from a sudden reboot ...
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