Ubuntu系统下电脑驱动的安装(wifi无线网卡) | 您所在的位置:网站首页 › ubuntu 2004 无线网卡无法加载 › Ubuntu系统下电脑驱动的安装(wifi无线网卡) |
今天给自己的笔记本电脑安装了新的Ubuntu 16.04但是安装之后发现wifi无法启用。这里特说明解决过程。 首先,网上的大部分教程是 选择“系统设置”,点击“软件和更新”点击“附加驱动”,这时候系统会自动联网监测本机适用的附加驱动,其中就包括你的无线网卡驱动。 但是按照上述步骤,却并没有看到需要安装驱动的硬件。但是我在网上找到了这样的一篇博客:Ubuntu 16.04下无线网卡无法正常连网
一.分析: 1.使用ifconfig命令发现不会显示无线网卡,说明无线网卡被关闭,笔者输出的信息如下: linuxidc@linuxidc:~$ ifconfig eth0 Link encap:以太网 硬件地址 16:03:71:93:64:22 inet 地址:192.168.100.3 广播:192.168.100.255 掩码:255.255.255.0 inet6 地址: fe80::1a03:73ff:fe92:632e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 跃点数:1接收数据包:295308 错误:0 丢弃:0 过载:0 帧数:0发送数据包:208860 错误:1 丢弃:0 过载:0 载波:0碰撞:0 发送队列长度:1000 接收字节:394951279 (394.9 MB) 发送字节:19510963 (19.5 MB) lo Link encap:本地环回 inet 地址:127.0.0.1 掩码:255.0.0.0 inet6 地址: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 跃点数:1接收数据包:943526 错误:0 丢弃:0 过载:0 帧数:0发送数据包:943526 错误:0 丢弃:0 过载:0 载波:0碰撞:0 发送队列长度:1 接收字节:464924375 (464.9 MB) 发送字节:464924375 (464.9 MB) 2.使用lshw命令输出信息(只贴出无线网卡相关的信息)如下: linuxidc@linuxidc:~$ lshw *-network DISABLED description: Wireless interface physical id: 2 logical name: wlan0 1 serial: 92 :31:e3:4a:75:f2 capabilities: ethernet physical wireless configuration: broadcast=yes driver=brcmsmac driverversion=4.1.0-78-generic firmware=102.304 ip=192.168.100.131 link=no multicast=yes wireless=IEEE 802.11bgn 从第2点的"*-network DISABLED"这一行可以明确无线网卡在硬件上被禁止了 3.于是打开硬件开关,但尝试了很多次都没成功,通过rfkill的输出信息来判断: linuxidc@linuxidc:~$ sudo rfkill list all[sudo] linuxidc 的密码: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes 从"Hard blocked: yes"这一行可以看出无线网卡在硬件上被block 如果是Soft blocked: yes , 可以通过 Fn+f2(笔记本) 打开 4.通过第3点开始怀疑无线网卡的驱动是否安装正确 二.安装无线网卡驱动: 1.卸载之前安装的无线网卡驱动(如果之前安装了的情况下,否则请无视): sudo apt-get purge firmware-b43-installer sudo apt-get purge bcmwl-kernel-source 2.获取无线网卡的PCI.ID (笔者的无线网卡品牌是broadcom,所以指定厂商代号为14e4) linuxidc@linuxidc$ lspci -nn -d 14e4:09:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01) 从以上信息中获取到关键信息为:[14e4:4727] (rev 01) -nn 选项是只显示指定的厂商代码对应的设备 -d 选项是显示厂商代号和设备代号,同时显示数字和名称 3.更新ubuntu的PCI.IDs列表: 3.1sudo apt-get update (首先更新软件包索引) 3.2sudo update-pciids (如果一直没有响应,那就将其中断),直接替换原来的/usr/share/misc/pci.ids文件,命令如下: cd /usr/share/misc/ sudo mv pci.ids pci.ids.orig 然后从http://pci-ids.ucw.cz/下载最新的pic.ids文件 将下载好的pci.ids文件复制到/usr/share/misc/目录下(由于笔者认为目前的无线网卡硬件不是很新,因此无线网卡的信息在原来的pci.ids文件中是存在的,因此并没有手动去更新pci.ids文件) 4.安装对应的无线网卡驱动,从下表即可获得对应驱动的软件包名PCI.ID 16.04 LTS 17.10+------------------------------------------------------------------------------------14e4:0576 Special Case #1 UNKNOWN 14e4:4301 firmware-b43-installer firmware-b43-installer 14e4:4306 firmware-b43-installer firmware-b43-installer 14e4:4306 rev 02 firmware-b43-installer firmware-b43-installer 14e4:4306 rev 03 firmware-b43-installer firmware-b43-installer 14e4:4307 firmware-b43-installer firmware-b43-installer 14e4:4311 firmware-b43-installer firmware-b43-installer 14e4:4311 rev 01 firmware-b43-installer firmware-b43-installer 14e4:4312 firmware-b43-installer firmware-b43-installer 14e4:4313 firmware-b43-installer firmware-b43-installer 14e4:4315 firmware-b43-installer firmware-b43-installer 14e4:4315 rev 01 firmware-b43-installer firmware-b43-installer14e4:4318 firmware-b43-installer firmware-b43-installer 14e4:4318 rev 02 firmware-b43-installer firmware-b43-installer 14e4:4319 firmware-b43-installer firmware-b43-installer 14e4:4320 rev 02 firmware-b43-installer firmware-b43-installer 14e4:4320 rev 03 firmware-b43-installer firmware-b43-installer 14e4:4321 firmware-b43-installer firmware-b43-installer 14e4:4324 firmware-b43-installer firmware-b43-installer 14e4:4325 firmware-b43-installer firmware-b43-installer 14e4:4328 firmware-b43-installer firmware-b43-installer 14e4:4329 bcmwl-kernel-source bcmwl-kernel-source 14e4:432a bcmwl-kernel-source bcmwl-kernel-source 14e4:432b bcmwl-kernel-source bcmwl-kernel-source 14e4:432c bcmwl-kernel-source bcmwl-kernel-source 14e4:432d bcmwl-kernel-source bcmwl-kernel-source 14e4:4331 firmware-b43-installer firmware-b43-installer 14e4:4335 firmware-b43-installer firmware-b43-installer 14e4:4350 firmware-b43-installer firmware-b43-installer 14e4:4353 Special Case #1 UNKNOWN 14e4:4353 rev 01 Special Case #1 UNKNOWN 14e4:4357 Special Case #1 UNKNOWN 14e4:4358 bcmwl-kernel-source bcmwl-kernel-source14e4:4359 bcmwl-kernel-source bcmwl-kernel-source 14e4:4360 bcmwl-kernel-source bcmwl-kernel-source 14e4:4365 bcmwl-kernel-source bcmwl-kernel-source 14e4:4365 rev 01 bcmwl-kernel-source bcmwl-kernel-source 14e4:43a0 bcmwl-kernel-source bcmwl-kernel-source14e4:43ae rev 02 UNKNOWN UNKNOWN 14e4:43b1 bcmwl-kernel-source bcmwl-kernel-source 14e4:43b1 rev 03 bcmwl-kernel-source bcmwl-kernel-source 14e4:43c3 rev 04 UNKNOWN Special Case #2 14e4:4727 bcmwl-kernel-source bcmwl-kernel-source 14e4:4727 rev 01 bcmwl-kernel-source bcmwl-kernel-source 14e4:a962 firmware-b43-installer firmware-b43-installer ------------------------------------------------------------------------------------4.1从上表中可以看到bcmwl-kernel-source与14e4:4727 rev 01对应,因此安装命令如下:sudo apt-get install bcmwl-kernel-source4.2重新启动
个人觉得是上述红色的字体是主要的。 sudo apt-get update sudo update-pciids 上述两步完成后,再进行选择“系统设置”,点击“软件和更新”点击“附加驱动”,这时候系统会自动联网监测本机适用的附加驱动,其中就包括你的无线网卡驱动。 就可以看到需要安装驱动的硬件了,点击安装即可。 |
CopyRight 2018-2019 实验室设备网 版权所有 |