本帖最后由 drowedfish 于 2018-7-16 15:12 编辑

换了环境才发现原来15.5默认不支持我的wifi网卡 mt7630e
lspci -v

2:00.0 Network controller: MEDIATEK Corp. MT7630e 802.11bgn Wireless Network Adapter
        Subsystem: Hewlett-Packard Company MT7630e 802.11bgn Wireless Network Adapter
        Flags: bus master, fast devsel, latency 0, IRQ 18
        Memory at f7c00000 (32-bit, non-prefetchable) [size=1M]


csdn找到驱动,原链接附下,安装好驱动,wifi就出现了
https://blog.csdn.net/zw__chen/article/details/78355047

Mediatek launched a working driver for their wireless device MT7630E for Linux Mint/Ubuntu which was officially supported only for kernel 3.13 and 3.14. The modified driver I am going to use can be installed upto kernel 4.4.*

Download:

Download the driver from here (It’s a modification of the original driver for easy installation)https://github.com/neurobin/MT7630E/archive/release.zip

Install:

Now follow the instructions below:

• extract the archive in your Downloads directory (or any other directory).

• In terminal run:

  
  

cd ~/Downloads/MT7630E-release (change the path if you extracted in another folder)

• now run these commands one by one:
  

sudo chmod +x install
sudo ./install

It will prompt for your password. Put your password and wait to finish the installaion.

After installation has been completed the wifi will appear in the networkmanager and bluetooth will be available for use. The driver will load at startup automatically, so you don’t need to load the driver every time you reboot.

from:https://community.linuxmint.com/tutorial/view/1796