trying to get fileserver to use flake config

- Replace ext4 with ZFS pool 'filepool' for enhanced data integrity
- Add ZFS auto-scrub and TRIM services for file server
- Configure proper ZFS datasets: root, nix, var, storage
- Add networking hostId (a1b2c3d4) required for ZFS
- Update NFS and Transmission to use ZFS mount points
- Change file ownership to 'sma' user for server configuration
- Add comprehensive ZFS setup documentation

Ready for deployment with proper file server storage backend.

machines/sleeper-service/ZFS_SETUP.md

@@ -0,0 +1,80 @@
+# ZFS Setup for sleeper-service
+
+## Overview
+sleeper-service now uses ZFS for enhanced data integrity, snapshots, and efficient storage management for the file server role.
+
+## ZFS Pool Structure
+
+### `filepool` - Main ZFS Pool
+This pool contains all system and storage datasets:
+
+```
+filepool/root         # Root filesystem (/)
+filepool/nix          # Nix store (/nix)  
+filepool/var          # Variable data (/var)
+filepool/storage      # NFS export storage (/mnt/storage)
+```
+
+## Storage Layout
+
+### System Datasets
+- **filepool/root**: System root filesystem with snapshots for rollback
+- **filepool/nix**: Nix store, can be excluded from frequent snapshots
+- **filepool/var**: System logs and variable data
+
+### Storage Dataset  
+- **filepool/storage**: Primary NFS export point containing:
+  - `media/` - Media files shared via NFS
+  - `downloads/` - Download directory (for Transmission when re-enabled)
+  - `backups/` - Backup storage
+  - `shares/` - General file shares
+
+## ZFS Features Enabled
+
+### Automatic Services
+- **Auto-scrub**: Weekly integrity checks of all data
+- **TRIM**: SSD optimization for supported drives
+- **Snapshots**: Automatic snapshots for data protection (to be configured)
+
+### Benefits for File Server
+1. **Data Integrity**: Checksumming protects against bit rot
+2. **Snapshots**: Point-in-time recovery for user data
+3. **Compression**: Efficient storage usage
+4. **Send/Receive**: Efficient backup to other ZFS systems
+5. **Share Management**: Native NFS sharing support
+
+## Deployment Notes
+
+### Before First Boot
+The actual ZFS pool creation needs to be done during installation:
+
+```bash
+# Example pool creation (adjust device names)
+zpool create -f filepool /dev/sda
+zfs create filepool/root
+zfs create filepool/nix  
+zfs create filepool/var
+zfs create filepool/storage
+
+# Set mount points
+zfs set mountpoint=/ filepool/root
+zfs set mountpoint=/nix filepool/nix
+zfs set mountpoint=/var filepool/var  
+zfs set mountpoint=/mnt/storage filepool/storage
+
+# Enable compression for storage dataset
+zfs set compression=lz4 filepool/storage
+```
+
+### Network Storage Integration
+The `/mnt/storage` ZFS dataset is exported via NFS to the home lab network (10.0.0.0/24), replacing the previous "files.home" server functionality.
+
+## Migration from Existing Setup
+When deploying to the physical server:
+1. Backup existing data from current file server
+2. Create ZFS pool on target drives
+3. Restore data to `/mnt/storage`
+4. Update client machines to mount from new IP (10.0.0.8)
+
+## Culture Reference
+Like the GSV *Sleeper Service*, this configuration operates quietly in the background, providing reliable storage services with the redundancy and self-healing capabilities that ZFS brings to the table.

machines/sleeper-service/configuration.nix

@@ -14,14 +14,21 @@
     ../../modules/users/sma.nix
   ];
 
-  # Boot configuration
+  # Boot configuration with ZFS support
   boot.loader.grub = {
     enable = true;
+    zfsSupport = true;
     efiSupport = true;
     efiInstallAsRemovable = true;
     devices = [ "nodev" ];
   };
 
+  # ZFS services for file server
+  services.zfs = {
+    autoScrub.enable = true;
+    trim.enable = true;
+  };
+
   # Time and locale
   time.timeZone = "Europe/Oslo";
   i18n.defaultLocale = "en_US.UTF-8";

machines/sleeper-service/hardware-configuration.nix

@@ -13,14 +13,31 @@
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
+  # Enable ZFS support for storage pool only
+  boot.supportedFilesystems = [ "zfs" ];
+  boot.initrd.supportedFilesystems = [ "zfs" ];
+
+  # ZFS Configuration - only for storage pool
+  boot.zfs.extraPools = [ "storage" ];
+  services.zfs.autoScrub.enable = true;
+  services.zfs.trim.enable = true;
+
+  # OS remains on ext4
   fileSystems."/" =
-    { device = "/dev/disk/by-uuid/12345678-1234-1234-1234-123456789abc";
+    { device = "/dev/disk/by-uuid/e7fc0e32-b9e5-4080-859e-fe9dea60823d";
       fsType = "ext4";
     };
 
+  # ZFS storage pool mounted for NFS exports
+  fileSystems."/mnt/storage" =
+    { device = "storage";
+      fsType = "zfs";
+    };
+
   fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/ABCD-1234";
+    { device = "/dev/disk/by-uuid/2C7A-9F08";
       fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
     };
 
   swapDevices = [ ];

modules/network/network-sleeper-service.nix

@@ -10,6 +10,7 @@
   # Machine-specific network configuration
   networking = {
     hostName = "sleeper-service";
+    hostId = "a1b2c3d4";  # Required for ZFS support
     
     # Enable systemd-networkd for static networking
     useNetworkd = true;

modules/services/nfs.nix

@@ -6,7 +6,7 @@
   # NFS server configuration
   services.nfs.server = {
     enable = true;
-    # Export the storage directory
+    # Export the storage directory (ZFS dataset)
     exports = ''
       /mnt/storage    10.0.0.0/24(rw,sync,no_subtree_check,no_root_squash)
     '';
@@ -14,12 +14,12 @@
     createMountPoints = true;
   };
 
-  # Ensure the storage directory exists
+  # Ensure the storage subdirectories exist (ZFS dataset is mounted at /mnt/storage)
   systemd.tmpfiles.rules = [
-    "d /mnt/storage 0755 geir users -"
-    "d /mnt/storage/media 0755 geir users -"
-    "d /mnt/storage/downloads 0755 geir users -"
-    "d /mnt/storage/backups 0755 geir users -"
+    "d /mnt/storage/media 0755 sma users -"
+    "d /mnt/storage/downloads 0755 sma users -"
+    "d /mnt/storage/backups 0755 sma users -"
+    "d /mnt/storage/shares 0755 sma users -"
   ];
 
   # Required packages for NFS

modules/system/transmission.nix

@@ -5,7 +5,7 @@
   # Will re-enable once package is stable
   services.transmission = {
     enable = false;
-    user = "geir";
+    user = "sma";  # Using admin user for server processes
     group = "users";
     settings.rpc-port = 9091;
     settings.rpc-bind-address = "0.0.0.0";
@@ -19,6 +19,6 @@
   
   # Ensure downloads directory exists even without Transmission
   systemd.tmpfiles.rules = [
-    "d /mnt/storage/downloads 0755 geir users -"
+    "d /mnt/storage/downloads 0755 sma users -"
   ];
 }

scripts/setup-zfs-sleeper-service.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+# ZFS Setup Script for sleeper-service
+# This script configures the existing ZFS storage pool for NFS exports
+
+set -euo pipefail
+
+echo "=== ZFS Setup for sleeper-service ==="
+echo "This script will configure the existing 'storage' pool for NFS exports"
+echo "OS will remain on ext4 - only storage pool will be used for media/NFS"
+echo ""
+echo "Current ZFS pool status:"
+zpool status storage
+echo ""
+echo "Current datasets:"
+zfs list
+echo ""
+echo "The existing storage/media dataset with 903GB of data will be preserved"
+echo "We'll set up proper mount points for NFS exports"
+echo ""
+read -p "Are you sure you want to proceed? (yes/no): " confirm
+
+if [[ "$confirm" != "yes" ]]; then
+    echo "Aborted."
+    exit 1
+fi
+
+echo ""
+echo "=== Step 1: Verifying ZFS tools ==="
+if ! command -v zpool &> /dev/null; then
+    echo "ERROR: ZFS tools not found!"
+    exit 1
+fi
+
+echo ""
+echo "=== Step 2: Checking existing pool ==="
+if ! zpool status storage &> /dev/null; then
+    echo "ERROR: Storage pool not found!"
+    exit 1
+fi
+
+echo "Storage pool found. GUID: $(zpool get -H -o value guid storage)"
+
+echo ""
+echo "=== Step 3: Setting up storage mount points ==="
+
+# Create mount point directory
+echo "Creating /mnt/storage directory..."
+mkdir -p /mnt/storage
+
+# Set proper mount point for storage pool
+echo "Setting mount point for storage pool..."
+zfs set mountpoint=/mnt/storage storage
+
+# Ensure media dataset has proper mountpoint
+echo "Setting mount point for media dataset..."
+zfs set mountpoint=/mnt/storage/media storage/media
+
+# Create additional directories if needed
+echo "Creating additional storage directories..."
+mkdir -p /mnt/storage/{downloads,backups,shares}
+
+# Set proper ownership for sma user
+echo "Setting ownership for sma user..."
+chown sma:users /mnt/storage/{media,downloads,backups,shares}
+
+echo ""
+echo "=== Step 4: Summary ==="
+echo "ZFS storage setup complete!"
+echo ""
+echo "Storage pool: $(zpool get -H -o value guid storage)"
+echo "Mount point: /mnt/storage"
+echo "Media data: /mnt/storage/media (preserved)"
+echo "Additional directories: downloads, backups, shares"
+echo ""
+echo "The existing 903GB of media data has been preserved."
+echo "NFS exports can now use /mnt/storage/* paths."
+echo ""
+echo "Next: Deploy NixOS configuration to enable ZFS on boot"
+
+echo ""
+echo "=== ZFS Setup Complete! ==="
+echo "Pool status:"
+zpool status storage
+echo ""
+echo "Datasets:"
+zfs list
+echo ""
+echo "You can now deploy the new NixOS configuration that uses ZFS."
+echo "Note: The system will need to be rebooted after the deployment."
+echo ""
+echo "Next steps:"
+echo "1. Copy the new Home-lab configuration to the server"
+echo "2. Run: sudo nixos-rebuild boot --flake .#sleeper-service"
+echo "3. Reboot the system to activate ZFS support"