---
name: "dump.f2fs"
section: "8"
platform: "linux"
package: "f2fs-tools"
version: "1.17.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/dump.f2fs"
---

# dump.f2fs(8)

retrieve directory and file entries from an F2FS-formated image

## NAME

dump.f2fs - retrieve directory and file entries from an F2FS-formated image

## SYNOPSIS

**dump.f2fs** \[ **-i** *inode number* \] \[ **-I** *inode number* \] \[ **-n** *NAT range* \] \[ **-M** *Block map* \] \[ **-s** *SIT range* \] \[ **-a** *SSA range* \] \[ **-b** *block address* \] \[ **-d** *debugging-level* \] *device*

## DESCRIPTION

**dump.f2fs** is used to retrieve f2fs metadata (usually in a disk partition). *device* is the special file corresponding to the device (e.g. */dev/sdXX*).

Currently, it can retrieve 1) a file or folder given its inode number (folders are dumped recursively), 2) NAT entries into a file, 3) SIT entries into a file, 4) SSA entries into a file, 5) reverse information from the given block address.

The exit code returned by **dump.f2fs** is 0 on success and -1 on failure.

## OPTIONS

- **-i** *inode number*

  Specify an inode number to dump out.

- **-r**

  Dump out from the root inode.

- **-f**

  Do not prompt before dumping

- **-y**

  Alias for -f

- **-o** *path*

  Dump inodes to the given path **-P** Preserve mode/owner/group for dumped inode

- **-L**

  Preserves symlinks. Otherwise symlinks are dumped as regular files.

- **-I** *inode number*

  Specify an inode number and scan full disk to dump out, include history inode block

- **-n** *NAT range*

  Specify a range presented by nids to dump NAT entries.

- **-M** *Block map*

  Show all the allocated block addresses given inode number.

- **-s** *SIT range*

  Specify a range presented by segment numbers to dump SIT entries.

- **-a** *SSA range*

  Specify a range presented by segment numbers to dump SSA entries.

- **-b** *block address*

  Specify a block address to retrieve its metadata information.

- **-d** *debug-level*

  Specify the level of debugging options. The default number is 0, which shows basic debugging messages.

- **-N**

  Answer "No" for all questsions.

- Initial checking code was written by Byoung Geun Kim \<bgbg.kim@samsung.com\>.

  ## AUTHOR

## AVAILABILITY

**dump.f2fs** is available from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git.

## SEE ALSO

**[mkfs.f2fs(8)](/mkfs.f2fs/8.md),** **[fsck.f2fs(8)](/fsck.f2fs/8.md),** **[defrag.f2fs(8)](/defrag.f2fs/8.md),** **[resize.f2fs(8)](/resize.f2fs/8.md),** **[sload.f2fs(8)](/sload.f2fs/8.md).**