First time to install ubilinux-3.0

yehnan New Member Posts: 16
I just got the UP board.

Downloaded the file ubilinux-3.0.iso, use Rufus (on Win 10) to burn the image into my SD card.
By following the instructions here:

I juse a SD card and a card reader.

Pressing F7 while booting, only see this:

There is not USB device to select.