Hello everyone!
I have Banana Pi and installed Ubuntu desktop Xenial 4.9.12. I have a USB wifi stick and Ubuntu recognizes , and USB works well. The problem is when I try to set my Banana Pi as an access point, then we Ubuntu reported to have root privileges. How to get root privileges in Ubuntu Xfce graphical environment?

How to stop autologin before lifting graphic Xfce desktop, and to ask for the root password?

Please help, and thank you in advance

Check file /etc/default/nodm and change your username with root and reboot.

Thank you, now I am the root user, but I have a problem when you create a new WiFi network, have offered to Access Point mode for your USB wifi. My USB wifi is: MAREL High Power WiFi Wireless LAN USB Adapter with 5dB antenna for Raspberry Pi Model B +, B and A, Banana Pi, BeagleBone, etc (300kbit / s, IEEE 802.11b / g / n, WEP / WPA / WPA2 ). Linux recognizes it as Realtek RTL 8191SU WLAN Adapter

I don't understand how do you try to achieve that ... in hostapd CLI or within Network manager?

 

You can switch to our beta repository and try if you can make hostapd work with our "armbian-config" (still in making). If wlan is properly recognised (that modules is loaded and firmware present), tool tries both possible hostapd variants and give you option of bridge / NAT network config if probe went o.k.