How to get the latest ubuntu image for Beaglebone Black (via MicroSD Card)?

Found it!

Then 2 modes…
Basic user-mode…

sudo beagle-flasher

bootup “auto” flasher mode…

sudo enable-beagle-flasher

Edit:
No, actually these are 2 ways of flashing from the SD card (manual and automatic).
Back to the question : how to disable auto flash from SD card?