Public bug reported:
Wifi adapter for lenovo l480 not founnd, google suggested
$ sudo apt install firmware-b43-installer
so
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
b43-fwcutter
The following NEW packages will be installed:
b43-fwcutter firmware-b43-installer
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 33.0 kB of archives.
After this operation, 126 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu noble/main amd64 b43-fwcutter amd64
1:019-11build1 [27.3 kB]
Get:2 http://archive.ubuntu.com/ubuntu noble/multiverse amd64
firmware-b43-installer all 1:019-11build1 [5,678 B]
Fetched 33.0 kB in 2s (15.1 kB/s)
Preconfiguring packages ...
Selecting previously unselected package b43-fwcutter.
(Reading database ... 227255 files and directories currently installed.)
Preparing to unpack .../b43-fwcutter_1%3a019-11build1_amd64.deb ...
Unpacking b43-fwcutter (1:019-11build1) ...
Selecting previously unselected package firmware-b43-installer.
Preparing to unpack .../firmware-b43-installer_1%3a019-11build1_all.deb ...
Unpacking firmware-b43-installer (1:019-11build1) ...
Setting up b43-fwcutter (1:019-11build1) ...
Setting up firmware-b43-installer (1:019-11build1) ...
No chroot environment found. Starting normal installation
No known supported Broadcom 802.11 chips found.
No supported device found.
But firmware is installed unconditionally
Trying to install latest firmware 6.30.163.46 .
--2025-11-19 16:28:09-- https://www.lwfinger.com/b43-firmware/broadcom-wl-6.30.
163.46.tar.bz2
Resolving www.lwfinger.com (www.lwfinger.com)... 2606:4700:3037::6815:5ec5, 2606
:4700:3030::ac43:a8a4, 172.67.168.164, ...
Connecting to www.lwfinger.com (www.lwfinger.com)|2606:4700:3037::6815:5ec5|:443
... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://blueprintmegaways.com/ [following]
--2025-11-19 16:28:11-- https://blueprintmegaways.com/
Resolving blueprintmegaways.com (blueprintmegaways.com)... 2606:4700:3036::6815:
6068, 2606:4700:3035::ac43:b0da, 104.21.96.104, ...
Connecting to blueprintmegaways.com (blueprintmegaways.com)|2606:4700:3036::6815
:6068|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘broadcom-wl-6.30.163.46.tar.bz2’
broadcom-wl-6.30.16 [ <=> ] 57.37K --.-KB/s in
0.002s
2025-11-19 16:28:12 (31.9 MB/s) - ‘broadcom-wl-6.30.163.46.tar.bz2’ saved [58745
]
broadcom-wl-6.30.163.46.tar.bz2: FAILED
sha512sum: WARNING: 1 computed checksum did NOT match
/var/lib/dpkg/info/firmware-b43-installer.postinst: Downloaded firmware did not
match known SHA512 checksum, aborting.
dpkg: error processing package firmware-b43-installer (--configure):
installed firmware-b43-installer package post-installation script subprocess re
turned error exit status 1
Processing triggers for man-db (2.12.0-4build2) ...
Errors were encountered while processing:
firmware-b43-installer
E: Sub-process /usr/bin/dpkg returned an error code (1)
ProblemType: Package
DistroRelease: Ubuntu 24.04
Package: firmware-b43-installer 1:019-11build1
ProcVersionSignature: Ubuntu 6.14.0-35.35~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-35-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
AptOrdering:
b43-fwcutter:amd64: Install
firmware-b43-installer:amd64: Install
NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: pass
Date: Wed Nov 19 16:28:12 2025
DpkgHistoryLog:
Start-Date: 2025-11-19 16:28:07
Commandline: apt install firmware-b43-installer
Requested-By: m-karthikeyan (1000)
Install: firmware-b43-installer:amd64 (1:019-11build1), b43-fwcutter:amd64
(1:019-11build1, automatic)
ErrorMessage: installed firmware-b43-installer package post-installation script
subprocess returned error exit status 1
InstallationDate: Installed on 2024-11-25 (359 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
PackageArchitecture: all
Python3Details: /usr/bin/python3.12, Python 3.12.3, python3-minimal,
3.12.3-0ubuntu2.1
PythonDetails: N/A
RelatedPackageVersions:
dpkg 1.22.6ubuntu6.5
apt 2.8.3
SourcePackage: b43-fwcutter
Title: package firmware-b43-installer 1:019-11build1 failed to install/upgrade:
installed firmware-b43-installer package post-installation script subprocess
returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-package noble
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https://bugs.launchpad.net/bugs/2131914
Title:
package firmware-b43-installer 1:019-11build1 failed to
install/upgrade: installed firmware-b43-installer package post-
installation script subprocess returned error exit status 1
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