Automic VaultAutomic Vault

brew

b43-fwcutter を Homebrew, apk, apt, dnf, Nix, pacman, zypper でインストール

b43-fwcutter のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

インストールコマンドセキュリティノート

インストール

追加のインストールコマンド

macOS

Homebrew確認済み · 100%
brew install b43-fwcutter

local Homebrew formula metadata

Linux

Alpine Linux apk確認済み · 92%
sudo apk add b43-fwcutter

Alpine Linux edge package indexes · b43-fwcutter · ソース: dl-cdn.alpinelinux.org

Debian apt確認済み · 92%
sudo apt install b43-fwcutter

Debian stable package indexes · b43-fwcutter · ソース: deb.debian.org

Fedora dnf確認済み · 92%
sudo dnf install b43-fwcutter

Fedora Rawhide package metadata · b43-fwcutter · ソース: dl.fedoraproject.org

Nix確認済み · 92%
nix profile install nixpkgs#b43-fwcutter

nixpkgs package indexes · pkgs/by-name/b4/b43-fwcutter/package.nix · ソース: api.github.com

Arch Linux pacman確認済み · 92%
sudo pacman -S b43-fwcutter

Arch Linux sync databases · b43-fwcutter · ソース: geo.mirror.pkgbuild.com

openSUSE zypper確認済み · 92%
sudo zypper install b43-fwcutter

openSUSE Tumbleweed package metadata · b43-fwcutter · ソース: download.opensuse.org

概要

パッケージ概要

Extract firmware from Braodcom 43xx driver files

コマンドとエイリアス

  • b43-fwcutter

履歴

プロジェクトの歴史と使われ方

b43-fwcutter is a small system utility for extracting firmware files for Linux's b43 and b43legacy Broadcom wireless drivers from Broadcom-supplied binary driver packages. It exists because many Broadcom devices need firmware uploaded after reset, but distributions historically could not simply redistribute the extracted firmware.

プロジェクトの歴史

The Linux Wireless b43 documentation explains the historical problem directly: Broadcom hardware requires firmware after reset, b43 expects that firmware under the system firmware directory, and Broadcom did not publish firmware for most cards. The b43 community therefore developed b43-fwcutter to extract the needed firmware files from Broadcom Linux binary drivers.

The official b43-fwcutter distribution directory shows early b43-fwcutter tarballs from 2008, continuing through multiple releases and a 2026 b43-fwcutter-020 tarball. The source lives in Michael Buesch's b43-tools repository, alongside the wider b43 maintenance tooling.

採用の歴史

b43-fwcutter became a distribution plumbing tool rather than an end-user glamour tool. Linux Wireless documents distro-specific helpers in openSUSE, Ubuntu, and Debian that wrapped or integrated the extraction process to reduce the manual burden on users.

The package metadata in this batch shows b43-fwcutter packaged by Homebrew, Debian, Ubuntu, Fedora, Arch, Alpine, Nix, and openSUSE. That spread reflects the same practical need across Linux distributions: installing free driver code was not enough when firmware still had to be extracted separately.

使われ方

Users and distribution scripts run b43-fwcutter against supported Broadcom driver archives, then install the extracted firmware where the Linux firmware loader can find it, commonly under /lib/firmware/b43/ for b43.

It is usually encountered while reviving older Broadcom 43xx wireless hardware, especially on systems where the kernel driver is present but firmware redistribution rules or packaging policy require a local extraction step.

パッケージ好きにとっての重要性

b43-fwcutter is a classic packaging edge-case artifact: tiny, unglamorous, and historically necessary because driver, firmware, licensing, and distro policy did not line up cleanly.

It matters to package nerds because it shows how package managers sometimes ship tools that do legal and operational boundary work rather than merely install upstream software. The package is the bridge between free kernel drivers and proprietary firmware blobs users had to obtain separately.

タイムライン

  • 2008: b43-fwcutter tarballs 009 and 010 appear in the official fwcutter distribution directory.
  • 2014: b43-fwcutter-019 is published in the official distribution directory.
  • 2026: b43-fwcutter-020 is published, showing the utility still maintained for legacy Broadcom support.

Related projects

  • b43 and b43legacy are the Linux Broadcom wireless drivers that consume the extracted firmware.
  • bcm43xx was the earlier Broadcom Linux wireless driver family referenced by Linux Wireless documentation.
  • Distribution helper packages such as Ubuntu's firmware-b43-installer and openSUSE's install_bcm43xx_firmware wrapped the extraction workflow.

セキュリティ状態

リスクレベル: グリーン

narrow executable package without higher-risk signals.

リスク分類器

リスク グリーン · 信頼度 低 · appliance

理由

  • narrow executable package without higher-risk signals

信号

  • metadata:no-higher-risk-signals

インストール挙動

  • formula メタデータに Homebrew post-install フックは記録されていません。
  • Homebrew bottle メタデータは 6 個のプラットフォームターゲットで利用できます。

推奨レビュー

エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。

実行可能ファイル

インストールされる実行可能ファイル

コマンド種類公開範囲メモ
b43-fwcuttercliグローバル実行可能ファイル

鮮度

バージョンと鮮度

これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。

ページ生成日2026-07-08
マネージャ版020
マネージャ更新日2026-05-23
ローカルデータOK
上流not checked
検出された最新未検出

https://wireless.docs.kernel.org/en/latest/en/users/drivers/b43.html

インストールメタデータ

パッケージメタデータ

パッケージキーbrew:b43-fwcutter
バージョン020
パッケージマネージャHomebrew
パッケージマネージャページhttps://formulae.brew.sh/formula/b43-fwcutter
ホームページhttps://wireless.docs.kernel.org/en/latest/en/users/drivers/b43.html
リポジトリhttps://git.bues.ch/git/b43-tools.git
上流ドキュメントhttps://bues.ch/b43/fwcutter
ライセンスBSD-2-Clause
ソースアーカイブhttps://bues.ch/b43/fwcutter/b43-fwcutter-020.tar.xz
最終更新2026-05-23T14:00:53Z
Pulseupdated
Bottle利用可能 (対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install未定義
サービス宣言なし

レジストリ情報

ソースデータベース詳細

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Nameb43-fwcutter
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

ソースデータベース一致

他のパッケージマネージャ記録

一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。

Debian apt95%

b43-fwcutter 1:019-14

utility for extracting Broadcom 43xx firmware

https://wireless.wiki.kernel.org/en/users/drivers/b43

sudo apt install b43-fwcutter
  • Section: contrib/utils
  • Architecture: amd64
  • 3 依存関係
  • normalized package name match
  • 一致条件: B43 Fwcutter
Debian stable package indexes · deb.debian.org · Debian stable package indexes: b43-fwcutter from https://deb.debian.org/debian/dists/stable/contrib/binary-amd64/Packages.xz
Debian apt95%

firmware-b43-installer 1:019-14

firmware installer for the b43 driver

https://wireless.wiki.kernel.org/en/users/drivers/b43

sudo apt install firmware-b43-installer
  • Section: contrib/kernel
  • Architecture: all
  • Source Package: b43-fwcutter
  • 5 依存関係
  • normalized package name match
  • 一致条件: B43 Fwcutter
Debian stable package indexes · deb.debian.org · Debian stable package indexes: firmware-b43-installer from https://deb.debian.org/debian/dists/stable/contrib/binary-amd64/Packages.xz
Debian apt95%

firmware-b43legacy-installer 1:019-14

firmware installer for the b43legacy driver

https://wireless.wiki.kernel.org/en/users/drivers/b43

sudo apt install firmware-b43legacy-installer
  • Section: contrib/kernel
  • Architecture: all
  • Source Package: b43-fwcutter
  • 4 依存関係
  • normalized package name match
  • 一致条件: B43 Fwcutter
Debian stable package indexes · deb.debian.org · Debian stable package indexes: firmware-b43legacy-installer from https://deb.debian.org/debian/dists/stable/contrib/binary-amd64/Packages.xz
Nix95%

b43-fwcutter

nix profile install nixpkgs#b43-fwcutter
  • normalized package name match
  • 一致条件: B43 Fwcutter
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/b4/b43-fwcutter/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

b43-fwcutter 1:019-11build1

utility for extracting Broadcom 43xx firmware

https://wireless.wiki.kernel.org/en/users/drivers/b43

sudo apt install b43-fwcutter
  • Section: utils
  • Architecture: amd64
  • 3 依存関係
  • normalized package name match
  • 一致条件: B43 Fwcutter
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: b43-fwcutter from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz
Ubuntu apt95%

firmware-b43-installer 1:019-11build1

firmware installer for the b43 driver

https://wireless.wiki.kernel.org/en/users/drivers/b43

sudo apt install firmware-b43-installer
  • Section: multiverse/kernel
  • Architecture: all
  • Source Package: b43-fwcutter
  • 5 依存関係
  • normalized package name match
  • 一致条件: B43 Fwcutter
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: firmware-b43-installer from https://archive.ubuntu.com/ubuntu/dists/noble/multiverse/binary-amd64/Packages.gz
Ubuntu apt95%

firmware-b43legacy-installer 1:019-11build1

firmware installer for the b43legacy driver

https://wireless.wiki.kernel.org/en/users/drivers/b43

sudo apt install firmware-b43legacy-installer
  • Section: multiverse/kernel
  • Architecture: all
  • Source Package: b43-fwcutter
  • 4 依存関係
  • normalized package name match
  • 一致条件: B43 Fwcutter
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: firmware-b43legacy-installer from https://archive.ubuntu.com/ubuntu/dists/noble/multiverse/binary-amd64/Packages.gz
apk95%

b43-fwcutter 019-r3

Tool to extract firmware from Broadcom drivers

https://wireless.wiki.kernel.org/en/users/Drivers/b43

sudo apk add b43-fwcutter
  • License: BSD-2-Clause
  • Architecture: x86_64
  • Source Package: b43-fwcutter
  • 1 依存関係
  • 1 提供
  • normalized package name match
  • 一致条件: B43 Fwcutter
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: b43-fwcutter from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
apk95%

b43-fwcutter-doc 019-r3

Tool to extract firmware from Broadcom drivers (documentation)

https://wireless.wiki.kernel.org/en/users/Drivers/b43

sudo apk add b43-fwcutter-doc
  • License: BSD-2-Clause
  • Architecture: x86_64
  • Source Package: b43-fwcutter
  • normalized package name match
  • 一致条件: B43 Fwcutter
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: b43-fwcutter-doc from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
dnf95%

b43-fwcutter 020-1.fc45

Firmware extraction tool for Broadcom wireless driver

https://bues.ch/b43/fwcutter/

sudo dnf install b43-fwcutter
  • License: BSD-2-Clause
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: b43-fwcutter
  • 2 依存関係
  • 1 提供
  • normalized package name match
  • 一致条件: B43 Fwcutter
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: b43-fwcutter from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
zypper95%

b43-fwcutter 019-7.3

Tool for extracting firmware from newer Broadcom WLAN drivers

https://bues.ch/cms/hacking/misc.html#linux_b43_driver_firmware_tools

sudo zypper install b43-fwcutter
  • License: BSD-2-Clause
  • Category: Hardware/Wifi
  • Architecture: x86_64
  • Source Package: b43-fwcutter
  • 3 依存関係
  • 3 提供
  • normalized package name match
  • 一致条件: B43 Fwcutter
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: b43-fwcutter from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst

パッケージグラフ

リンクは、ローカルのパッケージ関係グラフ、補足データ、依存関係、エコシステム一致、パッケージハブ所属から来ています。

同じワークフロー

  • acpicaShares av.db curated category or tags: cli, firmware, system.
  • dfu-programmerShares av.db curated category or tags: cli, firmware, system.
  • dfu-utilShares av.db curated category or tags: cli, firmware, system.
  • flashromShares av.db curated category or tags: cli, firmware, system.
  • fon-flash-cliShares av.db curated category or tags: cli, firmware, system.
  • fwupShares av.db curated category or tags: cli, firmware, system.

エージェント安全ガイド

ソース経路

リポジトリデータから生成

このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。

使用ソース

  • Geiger risk classifier
  • Nucleus package database
  • av.db category and tag curation
  • cross-ecosystem install command graph
  • curated package history
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment