Start creating base images

files/scripts/signkernel.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+# Copyright 2025 Universal Blue
+# 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
+
+KERNEL_VERSION="$(rpm -q "kernel" --queryformat '%{VERSION}-%{RELEASE}.%{ARCH}')"
+
+PUBLIC_KEY_DER_PATH="../system/etc/pki/akmods/certs/akmods-secureblue.der"
+PUBLIC_KEY_CRT_PATH="./certs/public_key.crt"
+PRIVATE_KEY_PATH="/tmp/certs/private_key.priv"
+
+openssl x509 -in "$PUBLIC_KEY_DER_PATH" -out "$PUBLIC_KEY_CRT_PATH"
+sbsign --cert "$PUBLIC_KEY_CRT_PATH" --key "$PRIVATE_KEY_PATH" /usr/lib/modules/"${KERNEL_VERSION}"/vmlinuz --output /usr/lib/modules/"${KERNEL_VERSION}"/vmlinuz
+sbverify --list /usr/lib/modules/"${KERNEL_VERSION}"/vmlinuz