Re: Automatically installing GRUB on multiple drives
On Fri, 2024-01-26 at 16:57 +0100, Nicolas George wrote:
> hw (12024-01-26):
> > How do you make the BIOS read the EFI partition when it's on mdadm
> > RAID?
>
> I have not yet tested but my working hypothesis is that the firmware
> will just ignore the RAID and read the EFI partition: with the scheme I
> described, the GPT points to the EFI partition and the EFI partition
> just contains the data.
>
> Of course, it only works with RAID1, where the data on disk is the data
> in RAID.
Ok if Andy and you are right, you could reasonably boot machines with
an UEFI BIOS when using mdadm RAID :)
How is btrfs going to deal with this problem when using RAID? Require
hardware RAID?
Having to add mdadm RAID to a setup that uses btrfs just to keep efi
partitions in sync would suck.
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