[MinnowBoard] 64-bit vs 32-bit UEFI - What you need to know!

[Darren Hart]

On 9/10/14, 1:35, "Roel Jordans" <r.jordans at tue.nl> wrote:

>
>> 
>>http://www.elinux.org/Minnowboard:MaxBios#Switching_from_64-bit_to_32-bit
>>
>> Basically you have to re-flash the firmware with a 32-bit firmware.
>> There's a line in the instructions that may confuse some folks,
>> specifically using a FirmwareUpdateX64.efi to flash a 32-bit firmware.
>> This is because when you go to change the firmware you are running a
>> 64-bit firmware, and therefore need a 64-bit EFI program to actually do
>> the flashing.
>>
>> If you want to switch back, you'll do the opposite, use
>> FirmwareUpdateIA32.efi to flash a 64-bit firmware.
>>
>
>Maybe it's possible to rename those updates (or add some renamed
>updates) to something like FirmwareUpdateIA32to64 or something?  That
>would probably remove most of the cause for confusion here.

That isn't accurate unfortunately. The update tool doesn't care which bit
length you are flashing to, you use the same tool to flash to 32b or to
64b, what matters is what firmware you are currently running, and that is
what the tool name reflects.

-- 
Darren Hart					Open Source Technology Center
darren.hart at intel.com				            Intel Corporation