From 96045f57c424ac34c5a6efe65f6b8bbff193401e Mon Sep 17 00:00:00 2001
From: Andreas Schaafsma <andreas@subsonics.nl>
Date: Wed, 22 Apr 2026 03:34:10 +0200
Subject: [PATCH] migrate predevicecommands to initrd systemd service

---
 .../hardware/graphics/passthrough_nvidia.nix  | 20 ++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/systems/x86_64-linux/drivebystation-nix/hardware/graphics/passthrough_nvidia.nix b/systems/x86_64-linux/drivebystation-nix/hardware/graphics/passthrough_nvidia.nix
index 18d8375..b5391a8 100644
--- a/systems/x86_64-linux/drivebystation-nix/hardware/graphics/passthrough_nvidia.nix
+++ b/systems/x86_64-linux/drivebystation-nix/hardware/graphics/passthrough_nvidia.nix
@@ -17,9 +17,23 @@
   boot.extraModprobeConfig = ''
     options vfio-pci ids=10de:1b81,10de:10f0
   '';
-  boot.initrd.preDeviceCommands = ''
-    modprobe vfio-pci
-  '';
+  boot.initrd.systemd = {
+    enable = true;
+    services.initrd-vfio-pci-nvidia = {
+
+    description = "vfio-pci predevice init";
+    wantedBy = [ "initrd.target" ];
+    # Match 'preDeviceCommands' by running early
+    before = [ "sysroot.mount" ]; 
+    
+    unitConfig.DefaultDependencies = "no";
+    serviceConfig.Type = "oneshot";
+    
+    # Place your original shell commands here
+    script = ''
+      modprobe vfio-pci
+    '';
+  }
   # # EARLY and deterministic binding
   # boot.initrd.preDeviceCommands = ''
   #   echo 0000:05:00.0 > /sys/bus/pci/drivers/vfio-pci/bind