raspberry树莓派 Linux USB无线网卡 连接wpa2无线

首先需要安装 wpa_supplicant

sudo apt-get install wpasupplicant

然后编辑配置文件

 vim /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
network={
    ssid="无线ssid"
    psk="无线的密码"
    key_mgmt=WPA-PSK
    proto=RSN WPA
    pairwise=CCMP TKIP
    group=CCMP TKIP
}

然后移除 network-manager-gnome

apt-get purge network-manager-gnome

然后设置启动自动连接无线

vim /etc/rc.local

把下面文字添加进去

ifconfig wlan0 down
dhclient -r wlan0
iwconfig wlan0 essid "无线ssid"
iwconfig wlan0 mode Managed
ifconfig wlan0 up
dhclient wlan0

修改 /etc/network/interfaces 第八行为 

pre-up wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
pre-up wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf -B
iface default inet dhcp

然后重启networking 或者 reboot