Add efibootmgr entry creation script.

efibootmgr-entry-create.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# efibootmgr - Create boot entry
+
+# Copyright 2022 Inference
+# License: BSD 3-Clause Clear
+
+# 0.0.0.0
+
+
+doas efibootmgr \\
+		--disk /dev/nvme0n1 \\
+		--part 1 \\
+		--create \\
+		--label "custom" \\
+		--loader '\EFI\custom\vmlinuz' \\
+		--unicode \\
+		'root=UUID=[REDACTED] rd.luks.uuid=[REDACTED] quiet splash initrd=\EFI\custom\initramfs.img'