{ disko.devices = { disk = { one = { type = "disk"; device = "/dev/sda"; content = { type = "gpt"; partitions = { BOOT = { size = "1M"; type = "EF02"; # for grub MBR }; ESP = { size = "500M"; type = "EF00"; content = { type = "mdraid"; name = "boot"; }; }; mdadm = { size = "100%"; content = { type = "mdraid"; name = "raid1"; }; }; }; }; }; two = { type = "disk"; device = "/dev/sdb"; content = { type = "gpt"; partitions = { boot = { size = "1M"; type = "EF02"; # for grub MBR priority = 1; # Needs to be first partition }; ESP = { size = "500M"; type = "EF00"; content = { type = "mdraid"; name = "boot"; }; }; mdadm = { size = "100%"; content = { type = "mdraid"; name = "raid1"; }; }; }; }; }; }; mdadm = { boot = { type = "mdadm"; level = 1; metadata = "1.0"; content = { type = "filesystem"; format = "vfat"; mountpoint = "/boot"; }; }; raid1 = { type = "mdadm"; level = 1; content = { type = "gpt"; partitions.primary = { size = "100%"; content = { type = "filesystem"; format = "ext4"; mountpoint = "/"; }; }; }; }; }; }; }