[Bug 1625200] Re: Permit to define bootloader_id in grub configuration

[mirak]

When you run grub-install it creates /boot/grub/x86_64-efi/grubx64.efi
that references /boot/grub/grub.cfg

The problem then is that instead of copying this one to
/EFI/$GRUB_DISTRIBUTOR/grubx64.efi, it copies
/usr/lib/grub/x86_64-efi/monolithic/grubx64.efi or /usr/lib/grub/x86_64
-efi-signed/grubx64.efi.signed .

They are prebuilt binaries in the deb packages and reference
/EFI/ubuntu/grub.cfg .

I understand that it's necessary if you want to have a signed
grubx64.efi, but we should be able to have correct implementation if we
don't care about secure boot.

I can find a setting that say which grubx64.efi to take.
Maybe it's handleded by alternatives, I will check that.

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https://bugs.launchpad.net/bugs/1625200

Title:
  Permit to define bootloader_id in grub configuration

Status in grub2 package in Ubuntu:
  Confirmed

Bug description:
  Hello,

  For a derivative we want to set GRUB_DISTRIBUTOR, unfortunately, when
  building -alternate images, shim-signed and grub-efi-amd64-signed are
  installed by default.

  I think a proper fix for #1242417 could be to set bootloader_id from a
  new variable like GRUB_EFI_DISTRIBUTOR.

  This way we could define GRUB_DISTRIBUTOR='FOO' and
  GRUB_EFI_DISTRIBUTOR='ubuntu'.

  Regards.

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