There are four key elements of a Linux file system:  Superblock: This is a special block that contains information about the file system as a whole, such as the total number of blocks, the number of free blocks, and the layout of the file system.  Inode Table: This is a table that stores information about each file and directory in the file system, such as the owner, permissions, size, and location of the file data.  Data Blocks: These are the blocks that actually contain the data for the files and directories in the file system.  File Names: These are the names that are used to identify the files and directories in the file system. Each file and directory have a unique file name that can be used to access it.