The ext4 file system is the 4th generation ext file system. The first, ext, was implemented in April 1992 and was the first file system created specifically for the Linux kernel.

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 ...

Second point, I would hardly call either of these file systems fringe, they are direct ports from there very mature commercial Unix counterparts (some features omitted in IBM JFS linux port).

The feature lets users access Linux file systems, such as ext4, that aren't natively supported by Windows. It also means those who are dual-booting Windows and Linux with different disks can now ...

Different file systems (e.g., ext4, XFS, Btrfs) have varying performance characteristics. Choose the one that best suits your workload. Disk I/O Optimization Techniques ext4: General-purpose file ...

If I create an ext4 filesystem on top of a zfs ZVOL and add a line to /etc/fstab for it: Then mount /mnt/zvolname will work just peachy. HOWEVER, trying to boot the system results in a hang ...

The Steam Deck uses a different file-storing system than what you might be used to, called ext4. It's designed for Linux, an open-source OS similar to Apple's UNIX-based Mac.