Setting to Triaged; looks like grub-install is likely failing to recognize the filesystem type because of the size of the disk, or in any case that's what seems to be a good starting assumption. Given that we have clear reproduction steps and a very clear error message, it should be possible to track this down, write a small reproducer, etc. to fix the issue.
Setting to Triaged; looks like grub-install is likely failing to recognize the filesystem type because of the size of the disk, or in any case that's what seems to be a good starting assumption. Given that we have clear reproduction steps and a very clear error message, it should be possible to track this down, write a small reproducer, etc. to fix the issue.