fuse2fs - Linux

Overview

fuse2fs is a command-line tool for creating and managing Fuse2 File Systems (F2FS). It provides a high-performance, flash-optimized file system designed for solid-state drives (SSDs). F2FS excels in handling both small and large files, making it suitable for various use cases, including mobile devices, embedded systems, and server applications.

Syntax

fuse2fs [options] <device>

Options/Flags

| Option | Description | Default |
|—|—|—|
| -f, –force | Force the creation of the file system, even if the device already contains other data | No |
| -l, –label | Set the volume label of the file system | None |
| -E, –encrypt | Enable file system encryption | No |
| -c, –cluster-size | Set the cluster size for the file system, in bytes (must be a power of 2 between 512 and 4096) | 4096 |
| -s, –sectors-per-block | Set the number of sectors per block for the file system (must be a power of 2) | 8 |
| -p, –reserve-percent | Set the percentage of the file system to be reserved for superuser use | 1 |
| -h, –help | Display help information and exit | N/A |

Examples

Creating a F2FS File System

fuse2fs /dev/sdc

Creating an Encrypted F2FS File System

fuse2fs -E /dev/sdc

Creating a F2FS File System with a Custom Cluster Size

fuse2fs -c 2048 /dev/sdc

Common Issues

Mount Failure

If the file system fails to mount after creation, check the following:

  • Device Permissions: Ensure that the user has the necessary permissions to access the device.
  • Block Device Errors: Run the dmesg command to check for any error messages related to the block device.
  • Encryption Key: If the file system is encrypted, ensure that the correct encryption key is being used.

Data Loss

F2FS does not support hot-unplugging of SSDs. If the SSD is suddenly removed while the file system is mounted, data loss may occur.

Integration

Using with Disk Utility GUIs

Fuse2FS can be integrated with disk utility GUIs such as GParted and KDE Partition Manager. Select the device, choose "Create File System" and specify "F2FS" as the file system type.

Auto-mounting

Use the fstab file to auto-mount F2FS file systems at boot time. Add an entry with the device path, mount point, file system type, and mount options.

/dev/sdc /mnt/fuse2fs fuse2fs auto,user,rw 0 1

Related Commands

  • mkfs.ext4: Creates an ext4 file system
  • mkswap: Creates a swap partition
  • gparted: Graphical utility for partitioning and managing disk devices
  • Fuse2FS Wiki