From 4b720f546848a8351d29d8e56349e229ce94d65a Mon Sep 17 00:00:00 2001
From: "Alexandre Cavalheiro S. Tiago da Silva" <contact@thewizard.link>
Date: Thu, 11 Jul 2024 04:52:17 -0300
Subject: [PATCH] chore: move to btrfs FS

Re-installed my system
---
 hardware-configuration.nix | 91 ++++++++++++++++++--------------------
 nixos.nix                  | 22 +++++++++
 2 files changed, 65 insertions(+), 48 deletions(-)

diff --git a/hardware-configuration.nix b/hardware-configuration.nix
index 1633bb8..9a338bb 100644
--- a/hardware-configuration.nix
+++ b/hardware-configuration.nix
@@ -1,66 +1,61 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{
-  config,
-  lib,
-  pkgs,
-  modulesPath,
-  ...
-}:
+{ config, lib, pkgs, modulesPath, ... }:
 
 {
-  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
 
-  boot.initrd.availableKernelModules = [
-    "nvme"
-    "xhci_pci"
-    "ahci"
-    "usb_storage"
-    "usbhid"
-    "sd_mod"
-  ];
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usb_storage" "usbhid" "sd_mod" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-amd" ];
   boot.extraModulePackages = [ ];
 
-  fileSystems."/" = {
-    device = "/dev/disk/by-uuid/65e4c115-aff0-4c0e-8799-7309a25ecab6";
-    fsType = "ext4";
-  };
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/1f7083ba-4271-486e-a85c-8386f6287b0a";
+      fsType = "btrfs";
+      options = [ "subvol=root" ];
+    };
 
-  fileSystems."/mnt/extra" = {
-    device = "/dev/disk/by-uuid/0d4ef3e0-7e7a-4a70-bbbc-040fe7aa7c2a";
-    fsType = "ext4";
-    options = [ "nofail" ];
-  };
+  fileSystems."/nix" =
+    { device = "/dev/disk/by-uuid/1f7083ba-4271-486e-a85c-8386f6287b0a";
+      fsType = "btrfs";
+      options = [ "subvol=nix" ];
+    };
 
-  fileSystems."/mnt/ssd" = {
-    device = "/dev/disk/by-uuid/f27f2224-d351-46fd-89f5-991de36166ad";
-    fsType = "ext4";
-    options = [ "nofail" ];
-  };
+  fileSystems."/home" =
+    { device = "/dev/disk/by-uuid/1f7083ba-4271-486e-a85c-8386f6287b0a";
+      fsType = "btrfs";
+      options = [ "subvol=home" ];
+    };
 
-  fileSystems."/boot" = {
-    device = "/dev/disk/by-uuid/2EFE-3A26";
-    fsType = "vfat";
-    options = [
-      "fmask=0022"
-      "dmask=0022"
-    ];
-  };
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/D4D7-CD5F";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
 
-  fileSystems."/mnt/media" = {
-    device = "/dev/disk/by-uuid/52c17b8b-46c1-4870-b86c-c3b9f4bd4434";
-    fsType = "ext4";
-    options = [ "nofail" ];
-  };
+  fileSystems."/mnt/internal" =
+    { device = "/dev/disk/by-uuid/b8541c0d-9146-4388-b217-431f196957cc";
+      fsType = "ext4";
+    };
 
-  fileSystems."/mnt/internal" = {
-    device = "/dev/disk/by-uuid/b8541c0d-9146-4388-b217-431f196957cc";
-    fsType = "ext4";
-    options = [ "nofail" ];
-  };
+  fileSystems."/mnt/ssd" =
+    { device = "/dev/disk/by-uuid/f27f2224-d351-46fd-89f5-991de36166ad";
+      fsType = "ext4";
+    };
+
+  fileSystems."/mnt/extra" =
+    { device = "/dev/disk/by-uuid/0d4ef3e0-7e7a-4a70-bbbc-040fe7aa7c2a";
+      fsType = "ext4";
+    };
+
+  fileSystems."/mnt/media" =
+    { device = "/dev/disk/by-uuid/52c17b8b-46c1-4870-b86c-c3b9f4bd4434";
+      fsType = "ext4";
+    };
 
   swapDevices = [ ];
 
diff --git a/nixos.nix b/nixos.nix
index a2fad9b..3d5580e 100644
--- a/nixos.nix
+++ b/nixos.nix
@@ -73,6 +73,27 @@
     efi.canTouchEfiVariables = true;
   };
 
+  # Configure options for mounted volumes.
+  fileSystems = {
+    "/".options = [ "compress=zstd" ];
+    "/home".options = [ "compress=zstd" ];
+    "/nix".options = [
+      "compress=zstd"
+      "noatime"
+    ];
+    "/mnt/extra".options = [ "nofail" ];
+    "/mnt/internal".options = [ "nofail" ];
+    "/mnt/media".options = [ "nofail" ];
+    "/mnt/ssd".options = [ "nofail" ];
+  };
+
+  # Enable btrf's auto scrubbing of volumes.
+  services.btrfs.autoScrub = {
+    enable = true;
+    interval = "weekly";
+    fileSystems = [ "/" ];
+  };
+
   networking.hostName = "nixos"; # Define your hostname.
 
   # Enable networking
@@ -320,6 +341,7 @@
     ## Tools
     # Utilities
     bat
+    btrfs-progs
     duf
     lm_sensors
     tree