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AK3 J4125 PXE Boot PXE-E79 NPB too big

Posted: Wed Mar 10, 2021 12:18 am
by figuerom
Hello,

We are trying to get our mini PC to PXE Boot, but it doesn't seem to want to take EFI NPB file. Looks like it's in Legacy Mode instead of EFI Mode.
There isn't an option to switch it EFI mode.
Our BIOS is American Megatrends,
Core Version 5.13
Project Version 1AUAJ 0.38 x64
Build Date and Time 08/07/2020

Is there a BIOS update that will help or a way to switch it to EFI mode?

重新:AK3 J4125 PXE启动PXE-E79 NPB太大

Posted: Wed Mar 10, 2021 1:04 am
by qq118520
You can try to press F7 to enter the EFI mode when booting up, or press Del to enter the BIOS and select BOOT when booting, and the first boot item to select the boot disk

Re: AK3 J4125 PXE Boot PXE-E79 NPB too big

Posted: Wed Mar 10, 2021 4:08 pm
by figuerom
Hello,

I've tried using F7 and selecting the PXE boot option and setting the PXE boot option in the BIOS.
It seems the PXE option is Legacy BIOS only instead of UEFI?
The result is the same:
Image

Re: AK3 J4125 PXE Boot PXE-E79 NPB too big

Posted: Wed Mar 10, 2021 9:05 pm
by figuerom
Hello,

We fixed the issue. We created a vendor policy for our DHCP server to send out the Legacy PXE BIOS (undionly.kpxe) whenever we get a PXEClient:Arch:00000 DHCP request. All other requests we hand out the PXE UEFI (ipxe.efi); this allows for UEFI and BIOS coexistence.

Thank you for your time!

Re: AK3 J4125 PXE Boot PXE-E79 NPB too big

Posted: Thu Mar 11, 2021 7:55 am
by admin
Your attempt is great.👍👍