新买的无线网卡(lb-link迷你随身WIFI)在ubuntu14.04下无法识别，打客服电话尝试无果。只好自己尝试解决。
lsusb
Bus 003 Device 006: ID 148f:7601 Ralink Technology, Corp.
然后在搜索上搜索设备号148f:7601
下面就是解决方法了。
I suggest you get a temporary internet connection, ethernet, tethered or whatever is available. Then do:
sudo apt-get install linux-headers-generic build-essential git
sudo apt-get install git
git clone https://github.com/porjo/mt7601.git
cd mt7601/src
make
sudo make install
sudo mkdir -p /etc/Wireless/RT2870STA/
sudo cp RT2870STA.dat /etc/Wireless/RT2870STA/
sudo modprobe mt7601Usta
Your wireless should now be working.
You have compiled the driver for your current kernel version only. When Update Manager installs a later linux-image, after the required reboot, you must re-compile:
cd mt7601/src
make clean
make
sudo make install
sudo modprobe mt7601Usta
Please retain the files and these instructions for that time. Glad it's working!
Ubuntu14.04－64位使用aircrack-ng和minidwep-gtk破解WIFI密码的：http://www.linuxdiyf.com/linux/13580.html
Ubuntu 14.04创建可以用于Android的WIFI热点：http://www.linuxdiyf.com/linux/11921.html
用Ubuntu破解wep加密的wifi：http://www.linuxdiyf.com/linux/8168.html
Ubuntu下建立WiFi热点的方法：http://www.linuxdiyf.com/linux/1089.html
ubuntu 15.04联网提示:wifi已通过硬件开关禁用：http://www.linuxdiyf.com/linux/12702.html