How to determine your Linux system’s filesystem types
Linux systems use a number of file system types – such as Ext, Ext2, Ext3, Ext4, JFS, XFS, ZFS, XFS, ReiserFS and btrfs. Fortunately, there are a number of commands that can look at your file systems and report on the type of each of them. This post covers seven ways to display this information.
To begin, the file system types that are used on Linux systems are described below.
File system types
Ext4 is the fourth generation of the ext file system, released in 2008 and pretty much the default since 2010. It supports file systems as big as 16 terabytes. It also supports unlimited subdirectories where ext3 only supports 32,000. Yet it’s backward compatible with both ext3 and ext2, thus allowing them to be mounted with the same driver. Ext4 is also very stable, widely supported and compatible with solid state drives.