Wifi 无法使用，那一次我后来修好了，但现在出现了奇怪的更新错误，为什么会出现，是不是因为这个原因？在回答中也发布了关于 comp 的信息，因为没有空间。还需要什么？
旧款 32 位 Dell Inspiron 1300。18.04.5 Kubuntu 使用第三方软件安装，LAN 线可能脱落。有更多更新，i915 内核模块缺失。
所以可能是局域网线断了，因为安装后，我没有互联网，插上电源，添加了合作伙伴存储库，仔细检查了更新和 dist-upgrade，并获得了带有此错误的更新。也许在安装更新时，有些东西断开了，没有自动修复，所以我出了点问题。
Setting up libcaca0:i386 (0.99.beta19-2ubuntu0.18.04.3) ...
Setting up gnupg-agent (2.2.4-1ubuntu1.4) ...
Setting up aspell (0.60.7~20110707-4ubuntu0.2) ...
Setting up libpython2.7-minimal:i386 (2.7.17-1~18.04ubuntu1.6) ...
Setting up mysql-client-core-5.7 (5.7.36-0ubuntu0.18.04.1) ...
Setting up xdg-utils (1.1.2-1ubuntu2.5) ...
Setting up ca-certificates (20210119~18.04.2) ...
Updating certificates in /etc/ssl/certs...
21 added, 20 removed; done.
Setting up dirmngr (2.2.4-1ubuntu1.4) ...
Setting up bluez (5.48-0ubuntu3.7) ...
Setting up libgs9:i386 (9.26~dfsg+0-0ubuntu0.18.04.15) ...
Setting up libglib2.0-bin (2.56.4-0ubuntu0.18.04.9) ...
Setting up libexif12:i386 (0.6.21-4ubuntu0.6) ...
Setting up xserver-xorg-core-hwe-18.04 (2:1.20.8-2ubuntu2.2~18.04.6) ...
Setting up libc-ares2:i386 (1.14.0-1ubuntu0.1) ...
Setting up linux-firmware (1.173.20) ...
update-initramfs: Generating /boot/initrd.img-5.4.0-94-generic
W: Possible missing firmware /lib/firmware/i915/tgl_dmc_ver2_04.bin for module i915
W: Possible missing firmware /lib/firmware/i915/skl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/glk_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/icl_guc_33.0.0.bin for module i915
update-initramfs: Generating /boot/initrd.img-5.4.0-42-generic
W: Possible missing firmware /lib/firmware/i915/tgl_dmc_ver2_04.bin for module i915
W: Possible missing firmware /lib/firmware/i915/skl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/glk_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/icl_guc_33.0.0.bin for module i915
Setting up libwhoopsie0:i386 (0.2.62ubuntu0.6) ...
Setting up libmysofa0:i386 (0.6~dfsg0-3+deb10u1build1) ...
Setting up liblwres160:i386 (1:9.11.3+dfsg-1ubuntu1.16) ...
Setting up rfkill (2.31.1-0.4ubuntu3.7) ...
Setting up libx11-data (2:1.6.4-3ubuntu0.4) ...
Setting up libpython2.7-stdlib:i386 (2.7.17-1~18.04ubuntu1.6) ...
Setting up python3-distupgrade (1:18.04.45) ...
Setting up gpg (2.2.4-1ubuntu1.4) ...
最后也是。
Processing triggers for shared-mime-info (1.9-2) ...
Unknown media type in type 'all/all'
Unknown media type in type 'all/allfiles'
Processing triggers for plymouth-theme-kubuntu-text (1:18.04ubuntu11) ...
dpkg: warning: version '/etc/lsb-release' has bad syntax: version number does not start with digit
rmdir: failed to remove '/lib/plymouth/': No such file or directory
update-initramfs: deferring update (trigger activated)
Processing triggers for dbus (1.12.2-1ubuntu1.2) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for rsyslog (8.32.0-1ubuntu4) ...
Processing triggers for mime-support (3.60ubuntu1) ...
Processing triggers for ureadahead (0.100.0-21) ...
ureadahead will be reprofiled on next reboot
Processing triggers for install-info (6.5.0.dfsg.1-2) ...
Processing triggers for dictionaries-common (1.27.2) ...
Processing triggers for ca-certificates (20210119~18.04.2) ...
Updating certificates in /etc/ssl/certs...
0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d...
done.
done.
Processing triggers for initramfs-tools (0.130ubuntu3.13) ...
update-initramfs: Generating /boot/initrd.img-5.4.0-94-generic
W: Possible missing firmware /lib/firmware/i915/tgl_dmc_ver2_04.bin for module i915
W: Possible missing firmware /lib/firmware/i915/skl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/glk_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915
W: Possible missing firmware /lib/firmware/i915/icl_guc_33.0.0.bin for module i915
produktivitate@produktivitate-ME051:~$
使用以下命令运行 lspci-nn-d 14e4：
02:00.0 Ethernet controller [0200]: Broadcom Inc. and subsidiaries BCM4401-B0 100Base-TX [14e4:170c] (rev 02)
02:03.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller [14e4:4318] (rev 02)
串行通信
00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03)
00:1d.1 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03)
00:1d.2 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03)
00:1d.3 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03)
00:1d.7 USB controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3)
00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03)
02:00.0 Ethernet controller: Broadcom Inc. and subsidiaries BCM4401-B0 100Base-TX (rev 02)
02:03.0 Network controller: Broadcom Inc. and subsidiaries BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02)
消息
[ 3.824367] [Firmware Bug]: Duplicate ACPI video bus devices for the same VGA controller, please try module parameter "video.allow_duplicates=1"if the current driver doesn't work.
[ 22.491113] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7
[ 22.491406] input: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[ 22.630159] b43-phy0: Broadcom 4318 WLAN found (core revision 9)
[ 22.677124] b43-phy0: Found PHY: Analog 3, Type 2 (G), Revision 7
[ 22.677149] b43-phy0: Found Radio: Manuf 0x17F, ID 0x2050, Revision 8, Version 0
[ 22.693320] b43 ssb0:0: Direct firmware load for b43/ucode5.fw failed with error -2
[ 22.693365] b43 ssb0:0: Direct firmware load for b43/ucode5.fw failed with error -2
[ 22.693412] b43 ssb0:0: Direct firmware load for b43-open/ucode5.fw failed with error -2
[ 22.693446] b43 ssb0:0: Direct firmware load for b43-open/ucode5.fw failed with error -2
[ 22.693451] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found
[ 22.693458] b43-phy0 ERROR: Firmware file "b43-open/ucode5.fw" not found
[ 22.693461] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
[ 22.693545] Broadcom 43xx driver loaded [ Features: PNL ]
[ 72.320791] random: crng init done
[ 72.320798] random: 7 urandom warning(s) missed due to ratelimiting
[ 109.165301] b44 ssb1:0 eth0: Link is up at 100 Mbps, full duplex
[ 109.165307] b44 ssb1:0 eth0: Flow control is off for TX and off for RX
[ 109.165457] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
瘦身
produktivitate-me051
description: Portable Computer
product: ME051
vendor: Dell Inc.
serial: 3BZ1L2J
width: 32 bits
capabilities: smbios-2.3 dmi-2.3
configuration: boot=normal chassis=portable uuid=44454C4C-4200-105A-8031-B3C04F4C324A
*-core
description: Motherboard
product: 0RJ272
vendor: Dell Inc.
physical id: 0
serial: .3BZ1L2J.CN7016668T098J.
*-firmware
description: BIOS
vendor: Dell Inc.
physical id: 0
version: A10
date: 11/07/2006
size: 64KiB
capacity: 448KiB
capabilities: isa pci pcmcia pnp upgrade shadowing cdboot bootselect int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb agp smartbattery biosbootspecification netboot
*-cpu
description: CPU
product: Intel(R) Celeron(R) M processor 1.60GHz
vendor: Intel Corp.
physical id: 400
bus info: cpu@0
version: 6.13.8
slot: Microprocessor
size: 1600MHz
capacity: 2130MHz
width: 32 bits
clock: 133MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx bts cpuid pti
*-cache:0
description: L1 cache
physical id: 700
size: 8KiB
capacity: 8KiB
capabilities: internal write-back data
configuration: level=1
*-cache:1
description: L2 cache
physical id: 701
size: 1MiB
capacity: 1MiB
clock: 66MHz (15.0ns)
capabilities: pipeline-burst internal varies unified
configuration: level=2
*-memory
description: System Memory
physical id: 1000
slot: System board or motherboard
size: 2560MiB
*-bank:0
description: DIMM DDR Synchronous 533 MHz (1,9 ns)
vendor: Nanya Technology
physical id: 0
serial: 35533A34
slot: DIMM_A
size: 512MiB
width: 64 bits
clock: 533MHz (1.9ns)
*-bank:1
description: DIMM DDR Synchronous 667 MHz (1,5 ns)
vendor: 7F7F7F7FCB000000
physical id: 1
serial: 00000000
slot: DIMM_B
size: 2GiB
width: 64 bits
clock: 667MHz (1.5ns)
*-pci
description: Host bridge
product: Mobile 915GM/PM/GMS/910GML Express Processor to DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 03
width: 32 bits
clock: 33MHz
*-display:0
description: VGA compatible controller
product: Mobile 915GM/GMS/910GML Express Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:16 memory:dff00000-dff7ffff ioport:eff8(size=8) memory:c0000000-cfffffff memory:dfec0000-dfefffff memory:c0000-dffff
*-display:1 UNCLAIMED
description: Display controller
product: Mobile 915GM/GMS/910GML Express Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:dff80000-dfffffff
*-multimedia
description: Audio device
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 03
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:24 memory:dfebc000-dfebffff
*-pci:0
description: PCI bridge
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:16 ioport:2000(size=4096) memory:80000000-801fffff ioport:80200000(size=2097152)
*-pci:1
description: PCI bridge
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 4
vendor: Intel Corporation
physical id: 1c.3
bus info: pci@0000:00:1c.3
version: 03
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:19 ioport:d000(size=4096) memory:dfc00000-dfdfffff ioport:d0000000(size=2097152)
*-usb:0
description: USB controller
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:16 ioport:bf80(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 5.4.0-94-generic uhci_hcd
physical id: 1
bus info: usb@2
logical name: usb2
version: 5.04
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:1
description: USB controller
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2
vendor: Intel Corporation
physical id: 1d.1
bus info: pci@0000:00:1d.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:17 ioport:bf60(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 5.4.0-94-generic uhci_hcd
physical id: 1
bus info: usb@3
logical name: usb3
version: 5.04
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:2
description: USB controller
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3
vendor: Intel Corporation
physical id: 1d.2
bus info: pci@0000:00:1d.2
version: 03
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:18 ioport:bf40(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 5.4.0-94-generic uhci_hcd
physical id: 1
bus info: usb@4
logical name: usb4
version: 5.04
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:3
description: USB controller
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4
vendor: Intel Corporation
physical id: 1d.3
bus info: pci@0000:00:1d.3
version: 03
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: irq:19 ioport:bf20(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 5.4.0-94-generic uhci_hcd
physical id: 1
bus info: usb@5
logical name: usb5
version: 5.04
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:4
description: USB controller
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller
vendor: Intel Corporation
physical id: 1d.7
bus info: pci@0000:00:1d.7
version: 03
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:16 memory:b0000000-b00003ff
*-usbhost
product: EHCI Host Controller
vendor: Linux 5.4.0-94-generic ehci_hcd
physical id: 1
bus info: usb@1
logical name: usb1
version: 5.04
capabilities: usb-2.00
configuration: driver=hub slots=8 speed=480Mbit/s
*-pci:2
description: PCI bridge
product: 82801 Mobile PCI Bridge
vendor: Intel Corporation
physical id: 1e
bus info: pci@0000:00:1e.0
version: d3
width: 32 bits
clock: 33MHz
capabilities: pci subtractive_decode bus_master cap_list
resources: memory:dfb00000-dfbfffff
*-network:0
description: Ethernet interface
product: BCM4401-B0 100Base-TX
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 02
serial: 00:15:c5:6d:6d:a3
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=b44 driverversion=2.0 duplex=full ip=192.168.1.138 latency=64 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:18 memory:dfbfc000-dfbfdfff
*-network:1
description: Network controller
product: BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller
vendor: Broadcom Inc. and subsidiaries
physical id: 3
bus info: pci@0000:02:03.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=b43-pci-bridge latency=64
resources: irq:17 memory:dfbfe000-dfbfffff
*-isa
description: ISA bridge
product: 82801FBM (ICH6M) LPC Interface Bridge
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 03
width: 32 bits
clock: 33MHz
capabilities: isa bus_master
configuration: driver=lpc_ich latency=0
resources: irq:0
*-ide
description: IDE interface
product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller
vendor: Intel Corporation
physical id: 1f.1
bus info: pci@0000:00:1f.1
version: 03
width: 32 bits
clock: 33MHz
capabilities: ide isa_compatibility_mode_controller__supports_both_channels_switched_to_pci_native_mode__supports_bus_mastering bus_master
configuration: driver=ata_piix latency=0
resources: irq:16 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:bfa0(size=16)
*-scsi
physical id: 1
logical name: scsi0
capabilities: emulated
*-disk
description: ATA Disk
product: SSDPR-CX400-128
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/sda
version: 61.3
serial: GUH032110
size: 119GiB (128GB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 signature=a35ac005
*-volume:0
description: Windows NTFS volume
physical id: 1
bus info: scsi@0:0.0.0,1
logical name: /dev/sda1
version: 3.1
serial: d085-4743
size: 48MiB
capacity: 50MiB
capabilities: primary bootable ntfs initialized
configuration: clustersize=4096 created=2022-01-15 14:50:48 filesystem=ntfs label=System Reserved modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true
*-volume:1
description: Windows NTFS volume
physical id: 2
bus info: scsi@0:0.0.0,2
logical name: /dev/sda2
version: 3.1
serial: ae10561c-9b24-e74e-be6c-b7d3f60179f0
size: 65GiB
capacity: 65GiB
capabilities: primary ntfs initialized
configuration: clustersize=4096 created=2022-01-15 14:50:55 filesystem=ntfs label=Windows Pro modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true
*-volume:2
description: Windows NTFS volume
physical id: 3
bus info: scsi@0:0.0.0,3
logical name: /dev/sda3
version: 3.1
serial: 14c1-032e
size: 429MiB
capacity: 450MiB
capabilities: primary ntfs initialized
configuration: clustersize=4096 created=2022-01-16 01:58:12 filesystem=ntfs modified_by_chkdsk=true mounted_on_nt4=true resize_log_file=true state=dirty upgrade_on_mount=true
*-volume:3
description: Extended partition
physical id: 4
bus info: scsi@0:0.0.0,4
logical name: /dev/sda4
size: 53GiB
capacity: 53GiB
capabilities: primary extended partitioned partitioned:extended
*-logicalvolume
description: EXT4 volume
vendor: Linux
physical id: 5
logical name: /dev/sda5
logical name: /
version: 1.0
serial: 8c2d7681-4766-4186-bb7a-845993d56fb2
size: 53GiB
capacity: 53GiB
capabilities: journaled extended_attributes large_files huge_files dir_nlink recover 64bit extents ext4 ext2 initialized
configuration: created=2022-01-15 18:10:28 filesystem=ext4 lastmountpoint=/ modified=2022-01-15 18:32:23 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro mounted=2022-01-15 18:32:24 state=mounted
*-battery
product: DELLYD1205A2
vendor: SMP
physical id: 1
slot: Sys. Battery Bay
capacity: 44000mWh
configuration: voltage=11,1V
按照 ubuntu lspci 和其他人的调试说明进行操作我遇到了硬件检测问题，我需要查看哪些日志？
lspci -vvv输出为https://pastebin.com/raw/UEKf9fnD
答案1
啊，所以错误是有帮助的。更新显示。
W: Possible missing firmware /lib/firmware/i915/tgl_dmc_ver2_04.bin for module i915
dmesg 显示命令modprobe b43在哪里https://wireless.wiki.kernel.org/en/users/Drivers/b43#devicefirmware
http://linuxwireless.sipsolutions.net/en/users/Drivers/b43/
因此需要出现错误并提供帮助。还需要出现错误，获取固件信息时自动修复此错误。
[ 22.693320] b43 ssb0:0: Direct firmware load for b43/ucode5.fw failed with error -2
[ 22.693365] b43 ssb0:0: Direct firmware load for b43/ucode5.fw failed with error -2
[ 22.693412] b43 ssb0:0: Direct firmware load for b43-open/ucode5.fw failed with error -2
[ 22.693446] b43 ssb0:0: Direct firmware load for b43-open/ucode5.fw failed with error -2
[ 22.693451] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found
[ 22.693458] b43-phy0 ERROR: Firmware file "b43-open/ucode5.fw" not found
[ 22.693461] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.
[ 22.693545] Broadcom 43xx driver loaded [ Features: PNL ]
对我来说似乎只有这个有效，然后重新启动
sudo apt install firmware-b43-installer
它还安装了b43-fwcutter
也许有些需要sudo apt install firmware-b43legacy-installer
然后命令b43-fwcutter查看命令，但我以前只b43-fwcutter -l看到列表但没有导入它们
测试了执行 modprobe -r b43 并重新安装第一个包，重启后一切正常。
看起来最后也需要，有一次我这么做了，因为我没有检查它是否自动将固件添加到 modprobe，如果没有，那么可以尝试
modprobe b43
也许再
sudo update-initramfs -u -k all
重新启动检查，因为这里仍然显示错误，但 wifi 可能已经安装。