disko integration

flake.lock

@@ -1,5 +1,25 @@
 {
   "nodes": {
+    "disko": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1773025010,
+        "narHash": "sha256-khlHllTsovXgT2GZ0WxT4+RvuMjNeR5OW0UYeEHPYQo=",
+        "owner": "nix-community",
+        "repo": "disko",
+        "rev": "7b9f7f88ab3b339f8142dc246445abb3c370d3d3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -133,6 +153,7 @@
     },
     "root": {
       "inputs": {
+        "disko": "disko",
         "home-manager": "home-manager",
         "nixos-wsl": "nixos-wsl",
         "nixpkgs": "nixpkgs",

flake.nix

@@ -16,9 +16,13 @@
       url = "github:nix-community/NixOS-WSL/2411.6.0";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    disko = {
+      url = "github:nix-community/disko";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
-  outputs = { self, nixpkgs, nur, home-manager, nixos-wsl }:
+  outputs = { self, nixpkgs, nur, home-manager, nixos-wsl, disko }:
   let
     system = "x86_64-linux";
     pkgs = import nixpkgs {
@@ -38,6 +42,7 @@
       desktop = nixpkgs.lib.nixosSystem {
         inherit system pkgs;
         modules = [
+          disko.nixosModules.disko
           ./src/system/machines/desktop
           home-manager.nixosModules.home-manager
             (import ./src/system/machines/desktop/modules/home-manager)

justfile

@@ -99,9 +99,9 @@ boot:
   @echo -e "\033[34m->> Reboot to new generation ->>\033[0m"
   @sudo nixos-rebuild boot --flake .#{{SYSTEM}}
 
-# Install NixOS from live USB (interactive disk selection)
+# Partition disk only (interactive disk selection)
 [group('nixos')]
-install SYSTEM:
+partition SYSTEM:
   #!/usr/bin/env bash
   set -euo pipefail
 
@@ -109,7 +109,6 @@ install SYSTEM:
 
   if [[ ! -f "$DISKO_CONFIG" ]]; then
     echo "Error: No disko config for '{{SYSTEM}}'"
-    echo "Available: desktop, workstation, vm"
     exit 1
   fi
 
@@ -119,11 +118,9 @@ install SYSTEM:
 
   for id in /dev/disk/by-id/*; do
     name=$(basename "$id")
-    # Skip partitions and non-disk entries
     [[ "$name" =~ part ]] && continue
     [[ ! "$name" =~ ^(ata|nvme|scsi)- ]] && continue
 
-    # Resolve to device and get info
     dev=$(readlink -f "$id")
     dev_name=$(basename "$dev")
     size=$(lsblk -dn -o SIZE "$dev" 2>/dev/null) || continue
@@ -157,16 +154,82 @@ install SYSTEM:
     *) echo "Aborted."; exit 1 ;;
   esac
 
+  echo "Writing disk '$DISK' to disko config..."
+  sed -i "s|device = \"/dev/disk/by-id/[^\"]*\";|device = \"$DISK\";|" "$DISKO_CONFIG"
+
   echo "Partitioning $DISK..."
   sudo nix \
     --extra-experimental-features "nix-command flakes" \
     run github:nix-community/disko -- \
-    --mode disko \
+    --mode destroy,format,mount \
-    --arg disk "\"$DISK\"" \
     "$DISKO_CONFIG"
 
-  echo "Installing NixOS..."
+  echo -e "\033[32mPartitioning complete. Disk mounted at /mnt.\033[0m"
-  sudo nixos-install --flake .#{{SYSTEM}} --no-root-passwd
+
+# Install NixOS (partition + install in one shot)
+[group('nixos')]
+install SYSTEM:
+  #!/usr/bin/env bash
+  set -euo pipefail
+
+  DISKO_CONFIG="./src/system/machines/{{SYSTEM}}/modules/disko/default.nix"
+
+  if [[ ! -f "$DISKO_CONFIG" ]]; then
+    echo "Error: No disko config for '{{SYSTEM}}'"
+    exit 1
+  fi
+
+  # Build array of disk options with readable info
+  declare -a DISK_IDS
+  declare -a DISK_OPTIONS
+
+  for id in /dev/disk/by-id/*; do
+    name=$(basename "$id")
+    [[ "$name" =~ part ]] && continue
+    [[ ! "$name" =~ ^(ata|nvme|scsi)- ]] && continue
+
+    dev=$(readlink -f "$id")
+    dev_name=$(basename "$dev")
+    size=$(lsblk -dn -o SIZE "$dev" 2>/dev/null) || continue
+    model=$(lsblk -dn -o MODEL "$dev" 2>/dev/null | xargs) || model=""
+
+    DISK_IDS+=("$id")
+    DISK_OPTIONS+=("$dev_name  $size  $model")
+  done
+
+  if [[ ${#DISK_IDS[@]} -eq 0 ]]; then
+    echo "No disks found!"
+    exit 1
+  fi
+
+  echo "Select a disk:"
+  select opt in "${DISK_OPTIONS[@]}"; do
+    if [[ -n "$opt" ]]; then
+      idx=$((REPLY - 1))
+      DISK="${DISK_IDS[$idx]}"
+      break
+    else
+      echo "Invalid selection"
+    fi
+  done
+
+  echo ""
+  echo -e "\033[31m!! WARNING: This will DESTROY all data on $DISK !!\033[0m"
+  read -p "Continue? [y/N]: " confirm
+  case "${confirm,,}" in
+    y|yes) ;;
+    *) echo "Aborted."; exit 1 ;;
+  esac
+
+  echo "Writing disk '$DISK' to disko config..."
+  sed -i "s|device = \"/dev/disk/by-id/[^\"]*\";|device = \"$DISK\";|" "$DISKO_CONFIG"
+
+  echo "Partitioning and installing NixOS..."
+  sudo nix \
+    --extra-experimental-features "nix-command flakes" \
+    run github:nix-community/disko/latest#disko-install -- \
+    --flake .#{{SYSTEM}} \
+    --disk main "$DISK"
 
   echo -e "\033[32mDone! Reboot to start NixOS.\033[0m"
 

src/system/machines/desktop/default.nix

@@ -5,5 +5,6 @@
     ../../../user/config
     ./hardware.nix
     ./system.nix
+    ./modules/disko
   ];
 }

src/system/machines/desktop/hardware.nix

@@ -52,23 +52,6 @@ with lib;
       cudaPackages.cudnn
     ];
 
-    fileSystems = {
-      "/" = {
-        device = "/dev/disk/by-uuid/495f5e7b-d9e4-4663-88c5-7021e7292535";
-        fsType = "ext4";
-      };
-
-      "/home" = {
-        device = "/dev/disk/by-uuid/cd0e5c29-716d-47f2-92f4-46ee9fca5af3";
-        fsType = "ext4";
-      };
-
-      "/boot" = {
-        device = "/dev/disk/by-uuid/C061-EE77";
-        fsType = "vfat";
-      };
-    };
-
     hardware = {
       cpu = {
         intel = {

src/system/machines/desktop/modules/disko/default.nix

@@ -1,10 +1,9 @@
-{ disk }:
 {
   disko.devices = {
     disk = {
-      one = {
+      main = {
         type = "disk";
-        device = disk;
+        device = "/dev/disk/by-id/ata-CT2000MX500SSD1_2137E5D2D47D";
         content = {
           type = "gpt";
           partitions = {