Comment 19 for bug 1025555

"""
3) Installing grub-efi from an already installed Ubuntu32 creates /efi/ubuntu/boot.efi , and /efi/ubuntu/grubia32.efi . Both EFI entries fail.
"""

And how exactly was that done? 32bit installer does not create UEFI partition to correctly place efi bootloader image.
Thus to test this one has to do manual paritioning while installing 32bit installer, leave a small partition (e.g. 200MB) at the front of the disk, formatted as FAT (EFI) partition and only then install grub-efi and I would then expect the UEFI boot in 32bits to work.

I have a MacBook early 2006 edition, which is 32bit EFI-only boot with an option for bios emulation. And I have used grub-efi (grub2 that is) successfully with it in the distant past. (~Hardy time)

It is true that we do not have 32bit UEFI bootable installation media. And we have no plans on fixing that, as on the other end of the stick older 32-bit BIOS-only computers may fail to boot when detecting gpt/multiparition CD images with dual bios/uefi boot stack.

I highly daubt it's a bug in grub2-efi, and ubiquity has support for efi. The bug here is against ubuntu-cdimage project that we don't generate any 32-bit uefi capable installation media. But i'd like to see a significant market share of 32bit-only-UEFI machines before we do introduce such an image.