Ubuntu 14.04 无线网卡驱动安装

安装了Ubuntu最新版本 14.04 之后，发现无线网卡不能使用，偿试安装驱动后，问题解决。

首先确定无线网卡类型：

lspci -vnn -d 14e4:

比如我的网卡类型为

06:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727]

根据网卡类型14e4:4727，对照下面这张表，找到所要安装的驱动，此处我所需要安装的就是wl种类的

请仔细查看设备 ID and 芯片名称 .

PCI-ID	支持与否	芯片 ID	模式	PHY 版本	替代
14e4:0576	not tested	BCM43224	a/b/g/n	?	wl/brcm80211
14e4:4301	yes (b43legacy)	BCM4301	b	B
14e4:4306	yes (b43legacy)	BCM4306/2	b/g	G
14e4:4307	yes	BCM4306/3	b/g	G
14e4:4311	yes	BCM4311	b/g	G	wl
14e4:4312	yes	BCM4311	a/b/g	G (r8)	wl
14e4:4313	not tested	BCM4311	a	?	wl
no	BCM4313	b/g/n	LCN (r1)	wl/brcm80211
14e4:4315	yes	BCM4312	b/g	LP (r1)	wl
14e4:4318	yes	BCM4318	b/g	G (r7)
14e4:4319	yes	BCM4318	a/b/g	G
14e4:4320	yes (b43legacy)	BCM4306/2	b/g	G (r1)
yes	BCM4306/3	?	G (r2)
14e4:4321	partially	BCM4321	?	N (r2)
14e4:4322	yes (3.18+)	BCM4322	b/g/n	N (r4)	wl
14e4:4324	yes (b43legacy)	BCM4306	a/b/g	G (r1)
yes	BCM4306/3	a/b/g	G (r5)
14e4:4325	yes (b43legacy)	BCM4306/2	b/g	G (r1)
14e4:4328	partially	BCM4321	a/b/g/n	N (r2)	wl
14e4:4329	partially	BCM4321	b/g/n	N (r1)	wl
14e4:432a	not tested	BCM4321	a/n	N	wl
14e4:432b	partially	BCM4322	a/b/g/n	N (r4)	wl
14e4:432c	yes	BCM4322	b/g/n	N	wl
14e4:432d	not tested	BCM4322	a/n	N	wl
14e4:4331	yes (3.2-rc3+)	BCM4331	a/b/g/n	HT (r1)	wl
14e4:4350	yes (3.8+)	BCM43222	a/b/g/n	N (r6)
14e4:4353	yes (3.1+)	BCM43224	a/b/g/n	N (r6)	wl/brcm80211
14e4:4357	yes (3.1+)	BCM43225	b/g/n	N (r6)	wl/brcm80211
14e4:4358	yes (3.17+)	BCM43227	b/g/n	N (r16)	wl
14e4:4359	yes (3.17+)	BCM43228	a/b/g/n	N (r16)	wl
14e4:4360	no	BCM4360	?	AC (r1)
14e4:4365	no	BCM43142	b/g/n	LCN40 (r3)	wl
14e4:43a0	no	BCM4360	a/b/g/n/ac	AC?	wl
no	BCM4352	a/b/g/n/ac	?	wl
14e4:43a9	yes (3.17+)	BCM43217	b/g/n	N (r17)
14e4:43aa	yes (3.17+)	BCM43131	b/g/n	N (r17)
14e4:43b1	no	BCM4352	a/b/g/n/ac	AC (r3)	wl
14e4:4727	no	BCM4313	b/g/n	LCN (r1)	wl/brcm80211
14e4:a8d6	not tested	BCM43222	?	N (6)
14e4:a8d8	yes (3.6+)	BCM43224	a/b/g/n	N (r6)	brcm80211
yes (3.6+)	BCM43225	?	N (r6)	brcm80211
14e4:a8db	partially (3.18+)	BCM43217	b/g/n	N (r17)
14e4:a99d	not tested	BCM43421?	?	?	wl

安装步骤：

1、先安装b43-fwcutter工具，如下：

下载b43-fwcutter源码：

http://bues.ch/b43/fwcutter/b43-fwcutter-018.tar.bz2

解压后，进入到目录中，执行

make

sudo make install

2、安装驱动

下载驱动文件：

http://www.lwfinger.com/b43-firmware/broadcom-wl-5.100.138.tar.bz2 使用b43-fwcutter工具安装驱动

sudo b43-fwcutter -w /lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o

3、加载驱动

modprobe b43

加载驱动可能需要时间比较长，请耐心等待。

对于其他种类的无线网卡，可参考网址：

http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware