I'm beginning to thing the problem is simply that the EFI System Partition really does need to be a real partition, and not a logical volume or part of a raid. It is not an issue with raid and fat32, it is just that the ESP (/boot/efi) needs to be reached from the EFI firmware, which doesn't know about anything except real GPT partitions. I'd really love to find otherwise, but that seems to be the conclusion of all my searching. Grub can boot to a kernel and initramfs on a logical or raid volume, but it seems that grubx64.efi (for example) needs to be on a physical partition.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1466150 Title: grub-install breaks when ESP is on raid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1466150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
