我已经安装了 ubuntu 14.04lts。但是 Wi-Fi 网络没有显示出来。请看右侧，Wi-Fi 网络没有显示出来，只显示了 LAN 网络，启用无线网络按钮不存在，只有启用网络按钮在那里，因此 Wi-Fi 网络无法检测到
如何解决这个问题？
串行通信
hpuphy@hpuphy-HP-Compaq-Elite-8300-MT:~$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core
processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200
v2/3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series
Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216
Chipset Family MEI Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation 7 Series/C210 Series
Chipset Family KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit
Network Connection (Lewisville) (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset
Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family
High Definition Audio Controller (rev 04)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset
Family USB Enhanced Host Controller #1 (rev 04)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a4)
00:1f.0 ISA bridge: Intel Corporation Q77 Express Chipset LPC
Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series
Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus
Controller (rev 04)
$ lshw -C 网络
WARNING: you should run this program as super-user.
*-network
description: Ethernet interface
product: 82579LM Gigabit Network Connection (Lewisville)
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 04
serial: 2c:44:fd:30:c1:48
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
$ lspci -nnk | grep 0280 -A3
$ rfkill list all
$
终端中没有lspci -nnk | grep 0280 -A3和命令的输出。rfkill list all
系统配置
lo no wireless extensions.
eth0 no wireless extensions.
请参阅lspci-nnk| grep -iA2 净
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit
Network Connection (Lewisville) [8086:1502] (rev 04)
Subsystem: Hewlett-Packard Company Device [103c:3397]
Kernel driver in use: e1000e