# Installer unyaffs avec Homebrew, apt, Nix

Consultez les chemins d'installation, exécutables, métadonnées et notes de sécurité de unyaffs pour les workflows d'agents IA.

## installation

```sh
sudo av install brew:unyaffs
```

Commandes d'installation supplémentaires:

### macOS

- Homebrew (100%):

```sh
brew install unyaffs
```

  Preuve: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install unyaffs
```

  Preuve: Debian stable package indexes: unyaffs from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- Nix (92%):

```sh
nix profile install nixpkgs#unyaffs
```

  Preuve: nixpkgs package indexes: pkgs/by-name/un/unyaffs/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Faits du paquet

- **Clé du paquet:** brew:unyaffs
- **Gestionnaire de paquets:** Homebrew
- **Version:** 0.9.7
- **Résumé source:** Extract files from a YAFFS2 filesystem image
- **Page d'accueil:** <https://packages.debian.org/sid/unyaffs>
- **Généré:** 2026-08-03T19:37:03+00:00

## exécutables

- unyaffs (alias)

## Comportement d'installation

- Bouteille: non disponible

## Version et fraîcheur

- page générée: 2026-08-03
- version du gestionnaire: 0.9.7
## Historique du projet et usages

unyaffs is a small extractor for YAFFS2 filesystem images, mainly useful to people inspecting embedded or Android-era NAND flash images rather than to general archive users.

### Historique du projet

The available upstream README says unyaffs was based on work from the YAFFS project, that the original implementation was by Kai Wei and hosted on Google Code, and that Bernhard Ehlers started a fork after the original project became inactive. A public mirror records the project as an extraction tool for YAFFS2 images created by mkyaffs2image.

The source-level history in the public mirror records v0.8 in August 2011 and v0.9 in September 2011. The README presents it as a conventional C utility for Unix-like systems with a make-based build.

### Historique d'adoption

Homebrew, Debian, Nix, and Ubuntu packaging in the supplied input show that unyaffs stayed available mostly through distribution package sets. That is typical for firmware-forensics utilities: small upstream, occasional packaging, and long shelf life because old image formats continue to appear.

### Modes d'utilisation

The README documents extraction of all files from a YAFFS2 filesystem image, optional layout selection, listing without extraction, verbose listings, standard-input support, and restoration of permissions, times, ownership, links, and special files where the host OS permits it.

### Pourquoi les passionnés de paquets s'y intéressent

The package is notable in a narrow niche: unpacking historical Android, embedded Linux, and NAND-flash images where YAFFS2 appears. Package maintainers care because it provides a single-purpose CLI that can be installed from general-purpose package managers instead of being recovered from archived Google Code downloads.

### Chronologie

- 2008: Source comments in the mirrored code record an initial version upload to Google Code.
- 2011: v0.8 and v0.9 tags appear in the public mirror.
- 2011: Public mirror repository created.
- 2026: Homebrew input still lists unyaffs as packaged.

### Related projects

- The README ties unyaffs to the YAFFS project and mkyaffs2image. Other tools in the same niche include yaffs2utils and YAFFS parsers, but those are outside the official unyaffs sources used here.

### Sources

- <https://github.com/whataday/unyaffs>
- <https://raw.githubusercontent.com/whataday/unyaffs/master/README>
- <https://raw.githubusercontent.com/whataday/unyaffs/master/unyaffs.c>
- source_facts.package-manager


## Notes de sécurité

broad file, network, media, or database tool signal.

- **Risque Geiger:** blue / moyen
- broad file, network, media, or database tool signal

## Autres enregistrements de gestionnaires de paquets

- Debian apt - unyaffs - 0.9.7-1: normalized package name match | Debian stable package indexes: unyaffs from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Extracts files from a YAFFS2 filesystem image | https://github.com/ehlers/unyaffs
- Nix - unyaffs: normalized package name match | nixpkgs package indexes: pkgs/by-name/un/unyaffs/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - unyaffs - 0.9.7-0.2: normalized package name match | Ubuntu 24.04 LTS package indexes: unyaffs from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Extracts files from a YAFFS2 filesystem image | https://github.com/ehlers/unyaffs


## Combined YAML source

View the package source record on GitHub. [combined/unyaffs.yml](https://github.com/mxcl/pkgdb/blob/main/combined/unyaffs.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph