EDIT: My problem was Heads not supporting mdadm, so most of this is not helpful to this topic. see: The NitroPC Pro 2 is Qubes-certified! - #3 by scallyob
ORIGINAL POST Thanks for the CLI example. I did it manually, line by line. However, I ended up in the same place after doing Custom and going to Manual Partitioning page in the GUI installer and setting the mount points an error shows in bottom left. When i click it the popup reads:
Your BIOS-based system needs a special partition to boot from a GPT disk label
To continue, please create a 1MiB ‘biosboot’ type partition on the nvme0n1 disk.
[repeats for nvme1n1]
It is recommended to create a new file system on your /boot partition
As mentioned above, this is using the Dasharo boot loader.
I believe @ddevz has based on the original post, right?