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Re: grub2.02 can boot the linux kernel with 64-bit boot protocol


From: Lennart Sorensen
Subject: Re: grub2.02 can boot the linux kernel with 64-bit boot protocol
Date: Fri, 26 Jul 2019 09:33:48 -0400
User-agent: NeoMutt/20170113 (1.7.2)

On Fri, Jul 26, 2019 at 08:09:11AM +0000, Sherry Zhang(BJ-RD) wrote:
> Hi All,
> I use the grub2.02 to boot the 64-bit kernel of Kernel 3.16.0. The grub2.02 
> use the 32-bit boot protocol and the grub is also 32-bit.
> But I see that grub can use the 64-bit boot protocol in the 
> Documents/x86/boot.txt. So I want to know how to realize it?

I thought it only used 64 bit when running in EFI mode on 64 bit UEFI.
Maybe I am mistaken.

After all if grub is running in 32bit mode, it isn't going to be loading
anything to memory above 4GB and hence has no need for 64 bit pointers.

-- 
Len Sorensen



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