Wi-Fi прекратил работать после обновления ядра (Ubuntu 14.04 на MacBook Air 2014)

Я должен запустить Ubuntu 14.04 на MacBook Air 2014. После установки ОС несколько лет назад, я не забываю иметь необходимость установить драйвер Wi-Fi вручную с помощью соединения Ethernet. Wi-Fi работал безупречно с тех пор, до сих пор.

Будучи запрошенным Системой Updater, чтобы сделать стандартное обновление ядра и перезапуск впоследствии, мой Wi-Fi внезапно прекратил работать.

Когда я ввожу "Wi-Fi на" на командной строке, я теперь добираюсь:

wifi      = none (no device)

И команда "sudo modprobe wl" теперь дает мне:

modprobe: FATAL: Module wl not found.

После чтения других потоков я пытался переустановить bcmwl-kernel-source пакет, напрасно.

Для ссылки соответствующая часть вывода sudo lspci-v:

03:00.0 Network controller: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter (rev 03)
    Subsystem: Apple Inc. Device 0117
    Flags: bus master, fast devsel, latency 0
    Memory at b0600000 (64-bit, non-prefetchable) [size=32K]
    Memory at b0400000 (64-bit, non-prefetchable) [size=2M]
    Capabilities: [48] Power Management version 3
    Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [68] Vendor Specific Information: Len=44 <?>
    Capabilities: [ac] Express Endpoint, MSI 00
    Capabilities: [100] Advanced Error Reporting
    Capabilities: [13c] Device Serial Number 8c-29-00-ff-ff-00-00-01
    Capabilities: [150] Power Budgeting <?>
    Capabilities: [160] Virtual Channel
    Capabilities: [1b0] Latency Tolerance Reporting
    Capabilities: [220] #15

Спасибо за помощь

Править:

"sudo dpkg-s bcmwl-kernel-source" дает:

Package: bcmwl-kernel-source
Status: install ok installed
Priority: optional
Section: admin
Installed-Size: 7902
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Source: bcmwl
Version: 6.30.223.271+bdcom-0ubuntu1~0.1
Replaces: bcmwl-modaliases
Depends: dkms, linux-libc-dev, libc6-dev
Conflicts: bcmwl-modaliases
Description: Broadcom 802.11 Linux STA wireless driver source
 This package contains Broadcom 802.11 Linux STA wireless driver
 for use with Broadcom's BCM4311-, BCM4312-, BCM4313-, BCM4321-,
 BCM4322-, BCM43224-, and BCM43225-, BCM43227- and BCM43228-based
 hardware.
Modaliases: wl(pci:v000014E4d00004311sv*sd*bc02sc80i*, pci:v000014E4d00004312sv*sd*bc02sc80i*, pci:v000014E4d00004313sv*sd*bc02sc80i*, pci:v000014E4d00004315sv*sd*bc02sc80i*, pci:v000014E4d00004727sv*sd*bc02sc80i*, pci:v000014E4d00004328sv*sd*bc02sc80i*, pci:v000014E4d00004328sv*sd*bc02sc80i*, pci:v000014E4d00004329sv*sd*bc02sc80i*, pci:v000014E4d0000432asv*sd*bc02sc80i*, pci:v000014E4d0000432bsv*sd*bc02sc80i*, pci:v000014E4d0000432csv*sd*bc02sc80i*, pci:v000014E4d0000432dsv*sd*bc02sc80i*, pci:v000014E4d00004365sv*sd*bc02sc80i*, pci:v000014E4d00004353sv*sd*bc02sc80i*, pci:v000014E4d00004357sv*sd*bc02sc80i*, pci:v000014E4d00004358sv*sd*bc02sc80i*, pci:v000014E4d00004359sv*sd*bc02sc80i*, pci:v000014E4d00004331sv*sd*bc02sc80i*, pci:v000014E4d000043a0sv*sd*bc02sc80i*, pci:v000014E4d000043B1sv*sd*bc02sc80i*)
Original-Maintainer: Alberto Milone <alberto.milone@canonical.com>

"sudo updatedb && располагаются, wl.ko" не дает вывода.

Второе редактирование:

sebastien:~$ sudo apt-get install --reinstall bcmwl-kernel-source
[sudo] password for sebastien: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 4 not upgraded.
Need to get 1,545 kB of archives.
After this operation, 0 B of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  bcmwl-kernel-source
Install these packages without verification? [y/N] y
Get:1 http://us.archive.ubuntu.com/ubuntu/ trusty-proposed/restricted bcmwl-kernel-source amd64 6.30.223.271+bdcom-0ubuntu1~0.1 [1,545 kB]
Fetched 1,545 kB in 1s (1,010 kB/s)              
(Reading database ... 297568 files and directories currently installed.)
Preparing to unpack .../bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu1~0.1_amd64.deb ...
Removing all DKMS Modules
Done.
Unpacking bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu1~0.1) over (6.30.223.271+bdcom-0ubuntu1~0.1) ...
Setting up bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu1~0.1) ...
Loading new bcmwl-6.30.223.271+bdcom DKMS files...
Building only for 3.13.0-164-generic
Building for architecture x86_64
Module build for the currently running kernel was skipped since the
kernel source for this kernel does not seem to be installed.
modprobe: FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Processing triggers for shim-signed (1.33.1~14.04.3+13-0ubuntu2) ...
Secure Boot not enabled on this system.
Processing triggers for initramfs-tools (0.103ubuntu4.11) ...
update-initramfs: Generating /boot/initrd.img-3.13.0-164-generic