Comment 27 for bug 1466150

The way to make it work is to place the EFI on a separate GPT raided
partition, outside the LVM PV. Which I forgot about when I wrote the idea
earlier.

On 1 July 2019 8:54:49 am John Robinson <email address hidden> wrote:

> You can use 0.90 or 1.0 metadata. Both leave the partitions underneath
> looking like it has a simple (non-RAID) filesystem on each disc of a
> mirror when the EFI or BIOS looks at the drives. I think that's what
> they need to boot from, so I don't think there's any chance of booting
> from a /boot/efi which is an lv in a vg on several pvs. Maybe LinuxBIOS?
>
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> 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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