In7*_*n78 31 wireless networking broadcom drivers
我已经在 Windows 8.1 旁边安装了 Ubuntu。但是 wifi 在 Ubuntu 中不起作用（可能驱动程序不存在），这在 Windows 中运行良好。我也无法连接以太网，因为我的笔记本电脑没有以太网端口。那么有没有办法让我在 ubuntu 中连接到互联网？
编辑：终端命令的输出 lspci -knn | grep Net -A2：
vikram@vikram-Inspiron-11-3148:~$ lspci -knn | grep Net -A2
01:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Dell Device [1028:0018]
Kernel driver in use: bcma-pci-bridge
vikram@vikram-Inspiron-11-3148:~$
我做了 Pilot6 的建议。这是输出：
vikram@vikram-Inspiron-11-3148:~$ sudo dpkg -i *.deb
[sudo] password for vikram:
Selecting previously unselected package bcmwl-kernel-source.
(Reading database ... 163804 files and directories currently installed.)
Preparing to unpack bcmwl-kernel-source_6.30.223.141+bdcom-0ubuntu2_amd64.deb ...
Unpacking bcmwl-kernel-source (6.30.223.141+bdcom-0ubuntu2) ...
Selecting previously unselected package dkms.
Preparing to unpack dkms_2.2.0.3-1.1ubuntu5.14.04_all.deb ...
Unpacking dkms (2.2.0.3-1.1ubuntu5.14.04) ...
Setting up dkms (2.2.0.3-1.1ubuntu5.14.04) ...
Setting up bcmwl-kernel-source (6.30.223.141+bdcom-0ubuntu2) ...
Loading new bcmwl-6.30.223.141+bdcom DKMS files...
First Installation: checking all kernels...
Building only for 3.16.0-30-generic
Building for architecture x86_64
Building initial module for 3.16.0-30-generic
ERROR (dkms apport): kernel package linux-headers-3.16.0-30-generic is not supported
Error! Bad return status for module build on kernel: 3.16.0-30-generic (x86_64)
Consult /var/lib/dkms/bcmwl/6.30.223.141+bdcom/build/make.log for more information.
modprobe: FATAL: Module wl not found.
update-initramfs: deferring update (trigger activated)
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Processing triggers for initramfs-tools (0.103ubuntu4.2) ...
update-initramfs: Generating /boot/initrd.img-3.16.0-30-generic
vikram@vikram-Inspiron-11-3148:~$
Pil*_*ot6 42
您需要安装无线驱动程序。
插入您的 Ubuntu 安装盘或闪存驱动器，并将这些文件从安装盘复制到您的主目录：
pool/main/d/dkms/dkms_XXXXX.deb
pool/restricted/b/bcmwl/bcmwl-kernel-source_XXXXX.deb
然后在终端中运行以下命令：
sudo dpkg -i *.deb
如果您有 UEFI BIOS，则需要禁用安全启动才能加载驱动程序。
18.04 更新：
该解决方案不适用于 18.04，因为build-essential默认情况下未安装其依赖项。该dpkg命令将抱怨未安装依赖项。
您可以在安装介质（按字母顺序排列的“pool”目录）上手动查找所需的软件包，并按照与dkms软件包相同的方式安装它们。我希望那里没有遗漏任何东西。