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

[John Robinson]

I just upgraded my system yesterday, which meant an updated grub, which
meant grub-install was run again, which meant this happened to me again.
Now on Ubuntu 16.04.6 LTS (GNU/Linux 4.4.0-150-generic x86_64) with
grub2 2.02~beta2-36ubuntu3.22 and its dependencies. Then I found that
Alejandro Mery's script in #17 worked for me.

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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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