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mjallen18
2025-08-21 15:39:24 -05:00
parent 6025b6c4f1
commit bd64283f04
14 changed files with 768 additions and 346 deletions
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88
modules/nixos/disko/aarch64-linux/default.nix
View File

@@ -2,23 +2,78 @@
config,
lib,
system,
namespace,
...
}:
let
cfg = config.${namespace}.hardware.disko;
isArm = builtins.match "aarch64*" system != null;
rootDisk = "/dev/nvme0n1";
# BTRFS root partition configuration
btrfsRoot = {
name = "btrfs-root";
size = "100%";
content = {
type = "btrfs";
extraArgs = [ "-f" ]; # Override existing partition
# Subvolumes must set a mountpoint in order to be mounted,
# unless their parent is mounted
subvolumes = {
"home" = {
mountOptions = [ "compress=zstd" ];
mountpoint = "/home";
};
"root" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/root";
};
"nix" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/nix";
};
"etc" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/etc";
};
"log" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/var/log";
};
};
};
};
# BCacheFS root partition configuration
bcachefsRoot = {
size = "100%";
content = {
type = "bcachefs";
# This refers to a filesystem in the `bcachefs_filesystems` attrset below.
filesystem = "mounted_subvolumes_in_multi";
label = "ssd.ssd1";
extraFormatArgs = [
"--discard"
];
};
};
in
{
config = lib.mkIf isArm {
imports = [ ../options.nix ];
config = lib.mkIf (isArm && cfg.enable) {
disko.devices = {
nodev."/" = {
fsType = "tmpfs";
mountOptions = [
"mode=755"
"defaults"
"size=2G"
];
};
# root disk setup
disk.main = {
type = "disk";
@@ -58,23 +113,12 @@ in
};
};
root = {
size = "100%";
content = {
type = "bcachefs";
# This refers to a filesystem in the `bcachefs_filesystems` attrset below.
filesystem = "mounted_subvolumes_in_multi";
label = "ssd.ssd1";
extraFormatArgs = [
"--discard"
];
};
};
root = if cfg.filesystem == "btrfs" then btrfsRoot else bcachefsRoot;
};
};
};
bcachefs_filesystems = {
bcachefs_filesystems = lib.mkIf (cfg.filesystem == "bcachefs") {
mounted_subvolumes_in_multi = {
type = "bcachefs_filesystem";
# passwordFile = "/etc/nixos/pool.jwe";

5
modules/nixos/disko/options.nix
View File

@@ -3,5 +3,10 @@ with lib;
{
options.${namespace}.hardware.disko = {
enable = mkEnableOption "enable disko";
filesystem = mkOption {
type = types.enum [ "bcachefs" "btrfs" ];
default = "btrfs";
description = "Filesystem to use for the root partition";
};
};
}

94
modules/nixos/disko/x86_64-linux/default.nix
View File

@@ -1,16 +1,80 @@
{
config,
lib,
system,
namespace,
...
}:
let
cfg = config.${namespace}.hardware.disko;
isArm = builtins.match "aarch64*" system != null;
rootDisk = "/dev/nvme0n1";
# BTRFS root partition configuration
btrfsRoot = {
name = "btrfs-root";
size = "100%";
content = {
type = "btrfs";
extraArgs = [ "-f" ]; # Override existing partition
# Subvolumes must set a mountpoint in order to be mounted,
# unless their parent is mounted
subvolumes = {
"home" = {
mountOptions = [ "compress=zstd" ];
mountpoint = "/home";
};
"root" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/root";
};
"nix" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/nix";
};
"etc" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/etc";
};
"log" = {
mountOptions = [
"compress=zstd"
"noatime"
];
mountpoint = "/var/log";
};
};
};
};
# BCacheFS root partition configuration
bcachefsRoot = {
size = "100%";
content = {
type = "bcachefs";
# This refers to a filesystem in the `bcachefs_filesystems` attrset below.
filesystem = "mounted_subvolumes_in_multi";
label = "ssd.ssd1";
extraFormatArgs = [
"--discard"
];
};
};
in
{
imports = [ ../options.nix ];
config = lib.mkIf (!isArm) {
disko.devices = {
config = lib.mkIf (!isArm && cfg.enable) {
disko.devices = lib.mkMerge [
{
disk = {
main = {
device = rootDisk;
@@ -30,24 +94,13 @@ in
};
};
root = {
size = "100%";
content = {
type = "bcachefs";
# This refers to a filesystem in the `bcachefs_filesystems` attrset below.
filesystem = "mounted_subvolumes_in_multi";
label = "ssd.ssd1";
extraFormatArgs = [
"--discard"
];
};
};
root = if cfg.filesystem == "btrfs" then btrfsRoot else bcachefsRoot;
};
};
};
};
bcachefs_filesystems = {
bcachefs_filesystems = lib.mkIf (cfg.filesystem == "bcachefs") {
mounted_subvolumes_in_multi = {
type = "bcachefs_filesystem";
# passwordFile = "/etc/nixos/pool.jwe";
@@ -71,6 +124,15 @@ in
mountpoint = "/partition-root";
};
};
};
} (lib.mkIf (cfg.filesystem == "btrfs") {
nodev."/" = {
fsType = "tmpfs";
mountOptions = [
"mode=755"
"defaults"
"size=25%"
];
};
})];
};
}