вторая расширенная файловая система (the second extended file system)
Описание (Description)
The second, third, and fourth extended file systems, or ext2,
ext3, and ext4 as they are commonly known, are Linux file systems
that have historically been the default file system for many
Linux distributions. They are general purpose file systems that
have been designed for extensibility and backwards compatibility.
In particular, file systems previously intended for use with the
ext2 and ext3 file systems can be mounted using the ext4 file
system driver, and indeed in many modern Linux distributions, the
ext4 file system driver has been configured to handle mount
requests for ext2 and ext3 file systems.
