The hardware I am using uses a "BIOS legacy" boot schema, so no UEFI stuff is involved.
My initial setup has 4 SAS disks from which I created a raid6 device (md0).
Then I partitioned it into md0p1 for / and md0p5 for /home and formatted these in XFS. For the latter I have also used LVM2, but I am pretty sure this is irrelevant.
Everything has been done with the Ubuntu Server 16.04.1 installer.
At the end, the system won't boot leaving me with a grub prompt saying it cannot find the device by UUID.
I think the installer is not RAID-aware, but it could be I did something wrong.
Any hint?
P.S. It is a server: please don't suggest to install GUI-based software!
