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feat(nixos): add disko module for declarative partitioning

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Mohammad Rafiq 2025-07-07 11:28:09 +08:00
parent 06a3f024c5
commit 714c3b8940
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4 changed files with 101 additions and 4 deletions
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4
nix/manifest.nix
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@ -2,10 +2,6 @@ let
testCfg =
{ hostName, ... }:
{
fileSystems."/" = {
device = "/dev/sda1";
fsType = "ext4";
};
boot.loader.systemd-boot.enable = true;
networking = { inherit hostName; };
};

75
nix/modules/machine/root.nix Normal file
View file

@ -0,0 +1,75 @@
{ config, inputs, ... }:
{
flake.modules.nixos.default =
{ hostName, ... }:
{
imports = [ inputs.disko.nixosModules.disko ];
boot.initrd.kernelModules = [ "dm-snapshot" ];
# BTRFS - may add more later on
disko.devices.disk.main = {
device = config.flake.manifest.hosts.nixos.${hostName}.machine.root.drive;
type = "disk";
content.type = "gpt";
content.partitions = {
boot = {
name = "boot";
size = "1M";
type = "EF02";
};
esp = {
name = "ESP";
size = "500M";
type = "EF00";
content = {
type = "filesystem";
format = "vfat";
mountpoint = "/boot";
};
};
swap = {
size = "4G";
content = {
type = "swap";
resumeDevice = true;
};
};
root = {
name = "root";
size = "100%";
content = {
type = "lvm_pv";
vg = "root_vg";
};
};
};
};
disko.devices.lvm_vg.root_vg = {
type = "lvm_vg";
lvs.root = {
size = "100%FREE";
content = {
type = "btrfs";
extraArgs = [ "-f" ];
subvolumes = {
"/root".mountpoint = "/";
"/persist" = {
mountpoint = "/persist";
mountOptions = [
"subvol=persist"
"noatime"
];
};
"/nix" = {
mountpoint = "/nix";
mountOptions = [
"subvol=nix"
"noatime"
];
};
};
};
};
};
};
}