{ disko.devices = { disk = { sda = { type = "disk"; device = "/dev/sda"; content = { type = "gpt"; partitions = { MBR = { type = "EF02"; # for grub MBR size = "1M"; priority = 1; # Needs to be first partition }; root = { size = "100%"; content = { type = "filesystem"; format = "ext4"; mountpoint = "/"; }; }; }; }; }; }; }; }