Hello.   Here is my commands which i've now used multiple times to install archlinux as VM inside Unraid with EFI.   Currently on unraid version: 6.9.0-beta25 and on AMD system.   Tell me if there is any problems with it.   NEW: There is nowdays guided install script in latest arch isos. So you can also run archinstall and it is much simpler method. Tested it with I440fx-5.1/Q35-5.1 and systemd-boot on archlinux-2021.10.01-x86_64.iso   Add V