[MinnowBoard] Fastboot - unable to get to BIOS setup on minnowboardmax

[Krause Martin]

Hi Thiago,

thanks for your feedback! I did a test with a newly flashed 0.73 firmware
and nothing connected, except HDMI monitor, serial cable and USB keyboard.
And to my surprise, I could enter bios by exiting efi shell via 'exit', even if
fastboot is enabled.

Because this has definitely not worked the last time, I did some further testing,
and I could reproduce the locked-out from bios situation:

I booted with a SD card inserted, changed the boot order in the bios to first
hard drive, second efi shell and booted Yocto from SD card. Then I removed
the SD card and booted again. And if I then enter 'exit' on the efi shell, the
system hangs (only a '_' is displayed on hdmi) and do not switch to bios.
Looks like a bug to me.

Best regards,
Martin


Von: elinux-MinnowBoard [mailto:elinux-minnowboard-bounces at lists.elinux.org] Im Auftrag von Thiago Tenório Jordão de Vasconcelos
Gesendet: Donnerstag, 13. November 2014 14:25
An: MinnowBoard Development and Community Discussion
Betreff: Re: [MinnowBoard] Fastboot - unable to get to BIOS setup on minnowboardmax

Martin,
For me I disconected everything.  It will give you an error...
On the error page I could go to the bios (exit).

Best regards,

Thiago Vasconcelos

On Thu, Nov 13, 2014 at 9:38 AM, Krause Martin <Martin.Krause at tq-group.com<mailto:Martin.Krause at tq-group.com>> wrote:
Hi,

I found a workaround.

I put FirmwareUpdate.efi and the BIOS file MNW2MAX1.X64.0073.R02.1409160934.bin
on an USB stick, boot into efi shell (this happens automatically if no other boot device
is plugged in) and do an firmware update.

After that the newly flashed BIOS boots with the default setting fastboot disabled.

This is not a nice solution, but it worked for me.

Best regards,
Martin

Von: Krause Martin
Gesendet: Donnerstag, 13. November 2014 09:22
An: 'elinux-minnowboard at lists.elinux.org<mailto:elinux-minnowboard at lists.elinux.org>'
Betreff: Fastboot - unable to get to BIOS setup on minnowboardmax

Hi,

I build version 0.73 from source and updated it on my minnowboardmax.
Everything was running fine. Then I enabled fastboot in the BIOS setup, and
now I'm unable to get to the BIOS setup screen again.

I tried pressing F2 at startup, I tried typing 'exit' in the EFI Shell, I tried
it with and without bootable SD card plugged and I tried it with and without
network plugged in. I also tried it with a cold boot (switching off and on
the 5 V) and with the onboard switch SW1. But nothing worked.

Is there any other trick I can test to get to the BIOS to disable fastboot?

Viele Grüße,
i.A. Martin Krause

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