Ubuntu
grub2 package

  1. Bug #1341944
  2. Comment #13

Comment 13 for bug 1341944

Revision history for this message
Phillip Susi (psusi) wrote : Re: [Bug 1341944] Re: 32-Bit UEFI bootloader support needed

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On 11/18/2014 12:00 PM, ClairelyClaire wrote:
> ETA: whether or not the 64-bit OS can make calls to the 32-bit
> UEFI doesn't prevent the OS from booting.

Actually, it does. It has to call on the UEFI firmware to obtain the
system memory map. Then of course, the installer has to make uefi
calls to point the boot catalog at grub.

So, you booted the 64 bit cd, and manually installed 32 bit grub? And
that worked fine, including being able to run efibootmgr? If so then
I guess the kernel is smart enough to thunk the 32 bit firmware calls
and so adding the 32 bit signed grub to the 64 bit cd should be fairly
simple.

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