We are using many of the Atom NUCs for a digital signage installation. We have noticed that on some occasions when the power is cut abruptly to the unit, a different boot menu sometimes appears when power is reconnected.
The menu displays:
[ESC] Normal Boot
[F2] Intel Visual BIOS
[F4] BIOS Recovery
[F7] Update BIOS
[F10] Enter Boot Menu
[F12] Network Boot
Disconnecting and reconnecting the power causes the unit to boot normally. We are using the built-in 4GB eMMC storage to run a Linux distribution.
Does anyone know how this menu can be skipped so the unit will always boot straight into the OS?
Are you holding the power button at some point by any chance? See power button menu in page 66.
Did you try changing the option "After Power Failure" in BIOS?
These machines are mounted on the wall, so I don't think the power button is ever being pressed on startup.
After Power Failure is set to "Power On".
"Wake System from S5" is selected.
"Wake on LAN from S4/S5" is selected, but we probably do not need this option.
"USB S5 Power" is deselected.
"Wakeup Hour" is set to 4. The other "Wakeup *" options are set to 0.