树莓派3Bwifi命令行连接问题

Successfully initialized wpa_supplicant
ctrl_iface exists and seems to be in use - cannot override it
Delete '/var/run/wpa_supplicant/wlan0' manually if it is not used anymore
Failed to initialize control interface 'DIR=/var/run/wpa_supplicant GROUP=netdev'.
You may have another wpa_supplicant process already running or the file was
left by an unclean termination of wpa_supplicant in which case you will need
to manually remove this file before starting wpa_supplicant again.

nl80211: deinit ifname=wlan0 disabled_11b_rates=0

        今天做个小项目，需要命令行下连接wifi，但是问题出现了，每次配置完，就是连不上，只能重启，重启后就可以连上。

但是项目要求是每次通过特定途径获取wifi 的ssid和密码，重启就没什么价值了。报错如上。

看了下，猜到大概是进程运行问题：执行

sudo killall wpa_supplicant

然后执行

sudo wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf

妥妥无压力，顺利连接了wifi

----------------------------------------------------------------------------------------------------------------------------------

下面说下树莓派wifi配置吧，参考博客：

https://www.cnblogs.com/shubin/p/7746399.html 写的非常不错。

扫描二维码关注公众号，回复： 124870 查看本文章