Instead of manually configuring the interface, have you considered using ConnMan? AFAIK,
the BeagleBone images ship with ConnMan enabled and the Wi-Fi in AP mode
("tethering" in ConnMan terms).
The command line tool is `connmanctl`. The Arch Linux wiki has a nice page on
how to use it.
On
Can't use SSH, so I'm trying to get the BeagleBone's WiFi up via serial
link (w/ console image). My failing method:
Create /etc/network/interfaces:
iface wlan0 inet dhcp
wpa-ssid "My_WiFi_SSID"
wpa-psk "My_WiFi_Password"
Enter commands:
sudo ip link set wlan0 up
sudo ifup
