diff --git a/scripts/kvmd-bootconfig b/scripts/kvmd-bootconfig
index c800205e..bdea9c1b 100755
--- a/scripts/kvmd-bootconfig
+++ b/scripts/kvmd-bootconfig
@@ -73,6 +73,29 @@ if [ -n "$FIRSTBOOT$FIRST_BOOT" ]; then
 fi
 
 
+# ========== OTG serial ==========
+
+if [ -n "$ENABLE_OTG_SERIAL" ]; then
+	cat <<end_of_file > /etc/kvmd/override.d/0000-vendor-otg-serial.yaml
+# Generated by kvmd-bootconfig. Do not edit this file!
+otg:
+    devices:
+        serial:
+            enabled: true
+end_of_file
+	grep '^ttyGS0$' /etc/securetty || echo ttyGS0 >> /etc/securetty
+	mkdir -p /etc/systemd/system/getty@ttyGS0.service.d
+	cat <<end_of_file > /etc/systemd/system/getty@ttyGS0.service.d/ttyGS0.override
+[Service]
+TTYReset=no
+TTYVHangup=no
+TTYVTDisallocate=no
+end_of_file
+	systemctl enable getty@ttyGS0.service
+	REBOOT=1
+fi
+
+
 # ========== SSH ==========
 
 if [ -n "$SSH_PORT" ]; then