Extended File System (Ext)
The Extended File System (Ext) is a family of file systems consisting of: ext, ext2, ext3, ext4
ext2 or the second extended file system is a Linux filesystem designed as a replacement for ext. Note that ext3 is mostly compatible with ext2.
ext3 or the third extended file system is a Linux filesystem. Its main advantage over ext2 is journalling which improves reliability and eliminates the need to check the file system after an unclean shutdown.
- Wikipedia article on EXT2
- Layout of the EXT2 Filesystem
- Linux Ext2fs Undeletion mini-HOWTO
- Using ext2 on other systems