Add more steps for nvidia installation

files/scripts/setdrmvariables.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+# Copyright 2025 The Secureblue Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software distributed under the License is
+# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and limitations under the License.
+
+set -oue pipefail
+
+echo '
+
+# Nvidia modesetting support. Set to 0 or comment to disable kernel modesetting
+# support. This must be disabled in case of SLI Mosaic.
+
+options nvidia-drm modeset=1 fbdev=1
+
+' > /usr/lib/modprobe.d/nvidia-modeset.conf
+
+cp /usr/lib/modprobe.d/nvidia-modeset.conf /etc/modprobe.d/nvidia-modeset.conf