{ disko.devices = { disk = { main = { type = "disk"; device = "/dev/sdb"; content = { type = "gpt"; efiGptPartitionFirst = false; partitions = { TOW-BOOT-FI = { priority = 1; type = "EF00"; size = "32M"; content = { type = "filesystem"; format = "vfat"; mountpoint = null; }; hybrid = { mbrPartitionType = "0x0c"; mbrBootableFlag = false; }; }; ESP = { type = "EF00"; size = "512M"; content = { type = "filesystem"; format = "vfat"; mountpoint = "/boot"; mountOptions = [ "umask=0077" ]; }; }; root = { size = "100%"; content = { type = "filesystem"; format = "ext4"; mountpoint = "/"; }; }; }; }; }; }; }; }