Re: UEFI Boot with Grub-Experimental

[Stephen Kou <stephen@hyarros.com>]

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  Given that grub itself works as 64-bit, I assume that the EFI firmware 
is also 64-bit.  And the grub itself loads a 64-bit kernel, so I'm 
pretty sure everything is 64-bit in the pipeline.

Would 64-bit grub-efi work on a 32-bit efi firmware?



On 7/7/2010 5:11 PM, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> On 07/08/2010 01:49 AM, stephen@hyarros.com wrote:
>> I've gotten UEFI booting working on some platforms, while other
>> platforms are not working.  Specifically, booting on Intel's own
>> motherobards using Intel's own BIOS software (Specifically, the SOX5810J
>> motherboard) does not seem to work.  I get the blank screen before the
>> kernel is about to come alive and after grub hands off execution to the
>> kernel.  It boots fine with the noefi flag, but without noefi it doesn't
>> work.
>>
>>
> Check that they bit size of Linux and EFI match. If they don't Linux crashes
>> I've tried all sorts of kernel flags to try to get some sort of output:
>> earlyprintk, debug=all, loglevel=7, vga=771, etc.  However, nothing
>> works -- the system is hung (numlock doesn't cause the LED to turn
>> on/off).
>>
>> Although I suspect this to be a kernel bug, could it be that grub is
>> setting up the video improperly or something?  The AMIBIOS boards have
>> some special video mode that uses the gnu unicode font.  The intel
>> boards only use the default system font.
>>
>> Any ideas on how to get some sort of output or kernel panic would be
>> appreciated.
>>
>> Thanks,
>> Stephen
>>
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>>
>>
>
>
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