This is a sample of a simple disk_config file to specify file system partitioning configurations for use with nixos-remote.
Partitioning is carried out by the disko utility. More examples of disk configurations are available here. You can browse through these to find a configuration that is suitable for your server.
Copy the configuration into a file named disk_config.nix. This should be in the same location as flake.nix.
# Example to create a bios compatible GPT partition
{ lib, disks ? [ "/dev/sda" ], ... }: {
disk = lib.genAttrs disks (dev: {
device = dev;
type = "disk";
content = {
type = "table";
format = "gpt";
partitions = [
{
name = "boot";
type = "partition";
start = "0";
end = "1M";
part-type = "primary";
flags = ["bios_grub"];
}
{
type = "partition";
name = "ESP";
start = "1MiB";
end = "100MiB";
bootable = true;
content = {
type = "mdraid";
name = "boot";
};
}
{
name = "root";
type = "partition";
start = "100MiB";
end = "100%";
part-type = "primary";
bootable = true;
content = {
type = "lvm_pv";
vg = "pool";
};
}
];
};
});
mdadm = {
boot = {
type = "mdadm";
level = 1;
metadata = "1.0";
content = {
type = "filesystem";
format = "vfat";
mountpoint = "/boot";
};
};
};
lvm_vg = {
pool = {
type = "lvm_vg";
lvs = {
root = {
type = "lvm_lv";
size = "100%FREE";
content = {
type = "filesystem";
format = "ext4";
mountpoint = "/";
mountOptions = [
"defaults"
];
};
};
};
};
};
}