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

[Tony Middleton]

I agree that the severity is incorrect.  Whenever grub-install is run -
ie when the version of grub is upgraded - I end up with an unbootable
system.  Yes, my trusty rescue disk sorts it out but that's not a
solution.

Referring to the comment above,  I have two EFI entries, one for each
disk. They both get trashed by grub-install so I recreate them by hand -
either before reboot or after using the rescue disk.

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

Title:
  grub-install breaks when ESP is on raid

Status in grub2 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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