> the UEFI partition must be FAT and can't be a RAID partition becaus eof > the limitations of UEFI 3rd attempt, let's see if this one gets through. It can, at least on RHEL and derivatives. >From my notes: mdadm --verbose --create --assume-clean /dev/md/r1_efi --name=r1_efi --level=1 --metadata=1.0 --raid-devices=7 /dev/nvme[0,2-3,5-8]n1p1 You have to select "EFI file system" for the file system in the installation and that was it.