[Bug 1466150] Re: grub-install breaks when ESP is on raid

[Seth Arnold]

On Sat, Dec 05, 2020 at 06:05:29PM -0000, Georg Sauthoff wrote:
> I've just tested this and it works as described.
> 
> However, grub-efi-amd64 wasn't installed on my freshly installed 20.04
> Ubuntu system.
> 
> Installed was grub-efi-amd64-signed.
> 
> And 'dpkg-reconfigure grub-efi-amd64-signed' didn't prompt for anything!
> 
> So, I installed grub-efi-amd64 and removed grub-efi-amd64-signed for the
> test.

I believe the preferred approach (for focal and newer?) is for
grub-efi-amd64-signed and grub-pc to be installed everywhere, and grub-pc
then 'owns' the debconf questions.

Thanks

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https://bugs.launchpad.net/bugs/1466150

Title:
  grub-install breaks when ESP is on raid

Status in grub-installer package in Ubuntu:
  Triaged

Bug description:
  I run a server with mirrored (RAID1) disks using grub-efi.

  Root and /boot and /boot/grub are on mirrored partitions.

  I have EFI partitions on both disks but it is not possible to RAID1
  these as they are FAT32.  On an EFI system grub-install will only
  install to one of the EFI partitions and so after running install-grub
  you have to remember to copy the EFI file across.

  Could grub configuration and grub-install be amended to automatically
  install to multiple disks?

  Searching around there seem to be many people asking this question
  without any elegant solution.

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