Just hit ok on ubuntu's software updater, and got notified of this problem
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: linux-firmware 1.187.7
ProcVersionSignature: Ubuntu 5.8.0-38.43~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-38-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia wl
ApportVersion: 2.20.11-0ubuntu27.14
AptOrdering:
linux-firmware:amd64: Install
NULL: ConfigurePending
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: guido 1627 F.... pulseaudio
/dev/snd/controlC1: guido 1627 F.... pulseaudio
CasperMD5CheckResult: skip
Date: Mon Jan 18 09:44:13 2021
Dependencies:
DpkgTerminalLog:
Preparing to unpack .../linux-firmware_1.187.8_all.deb ...
Unpacking linux-firmware (1.187.8) over (1.187.7) ...
dpkg: error processing archive /var/cache/apt/archives/linux-firmware_1.187.8_all.deb (--unpack):
unable to create '/lib/firmware/brcm/BCM-0bb4-0306.hcd.dpkg-new' (while processing './lib/firmware/brcm/BCM-0bb4-0306.hcd'): Operation not permitted
DuplicateSignature:
package:linux-firmware:1.187.7
Unpacking linux-firmware (1.187.8) over (1.187.7) ...
dpkg: error processing archive /var/cache/apt/archives/linux-firmware_1.187.8_all.deb (--unpack):
unable to create '/lib/firmware/brcm/BCM-0bb4-0306.hcd.dpkg-new' (while processing './lib/firmware/brcm/BCM-0bb4-0306.hcd'): Operation not permitted
ErrorMessage: unable to create '/lib/firmware/brcm/BCM-0bb4-0306.hcd.dpkg-new' (while processing './lib/firmware/brcm/BCM-0bb4-0306.hcd'): Operation not permitted
InstallationDate: Installed on 2021-01-10 (8 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04ca:2006 Lite-On Technology Corp. Broadcom BCM43142A0 Bluetooth Device
Bus 001 Device 002: ID 04f2:b483 Chicony Electronics Co., Ltd USB2.0 VGA UVC WebCam
Bus 001 Device 004: ID 0458:0186 KYE Systems Corp. (Mouse Systems) Genius DX-120 Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. X455LF
PackageArchitecture: all
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-38-generic root=UUID=db228316-62a1-46bb-acf8-70710cb27e13 ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions: grub-pc 2.04-1ubuntu26.7
SourcePackage: linux-firmware
Title: package linux-firmware 1.187.7 failed to install/upgrade: unable to create '/lib/firmware/brcm/BCM-0bb4-0306.hcd.dpkg-new' (while processing './lib/firmware/brcm/BCM-0bb4-0306.hcd'): Operation not permitted
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/03/2015
dmi.bios.release: 5.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X455LF.205
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X455LF
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX455LF.205:bd08/03/2015:br5.6:svnASUSTeKCOMPUTERINC.:pnX455LF:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX455LF:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: X
dmi.product.name: X455LF
dmi.product.sku: ASUS-NotebookSKU
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
Have you tried to install any firmware, either manually or via third-party packages? Are you running any antivirus tools?
What is the output from running the following commands in a terminal?
ls -ld /lib/firmware/brcm
ls -l /lib/firmware/brcm