UEFI installation doesn't create RAID1 for ESP partition about installimage HOT 6 CLOSED

It's still a working solution and for everything but Ubuntu there are no other (easy) options for redundancy available.

from installimage.

Using RAID1 as outlined in the article is a bit of a hack. It works, but the right way is to actually have separate ESPs on every device. Ubuntu, which you have probably selected, supports this and installimage will install it this way.

from installimage.

Both will need to be updated if GRUB is updated, does it also install some hook that copies files properly from one ESP partition to another? Not sure how that would be done if UUID of both partitions was the same and /etc/fstab was mounting partition by UUID. The hack in the article ensures both have up to date config and it was quite an effort to adjust partition table and OS accordingly before the first boot.

from installimage.

No, there is no hack that needs to be installed. As mentioned Ubuntu supports multiple ESPs natively. This means when grub is updated it gets installed on all configured ESPs. They get the same id so that at least one of them is always mounted.

from installimage.

Wow, that is a bit surprising and confusing at the same time, I didn't know about it. Thanks for explaining!

from installimage.

But why does the article recommends RAID1 anyway then?

from installimage.