diff --git a/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb b/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb
index 242ca88e..1af3a6dd 100644
--- a/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb
+++ b/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb
@@ -7,10 +7,16 @@ DESCRIPTION = "Install image to device"
 
 inherit dpkg-raw
 
-SRC_URI = "file://usr/bin/deploy-image-wic.sh \
+SRC_URI = "file://usr/bin/deploy-image-wic.sh.tmpl \
            file://usr/lib/deploy-image-wic/handle-config.sh \
           "
 DEBIAN_DEPENDS = "bmap-tools, pv, dialog, util-linux, parted, fdisk, gdisk, pigz, xz-utils, pbzip2, zstd"
+
+INSTALLER_UNATTENDED_TTY ?= "${MACHINE_SERIAL}"
+
+TEMPLATE_FILES += "usr/bin/deploy-image-wic.sh.tmpl"
+TEMPLATE_VARS += "INSTALLER_UNATTENDED_TTY"
+
 do_install[cleandirs] = "${D}/usr/bin/ \
                          ${D}/usr/lib/deploy-image-wic \
                         "
diff --git a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh.tmpl
similarity index 95%
rename from meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
rename to meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh.tmpl
index 7f552eee..33a409f3 100755
--- a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh
+++ b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh.tmpl
@@ -10,6 +10,12 @@ SCRIPT_DIR=$( dirname -- "$( readlink -f -- "$0"; )"; )
 
 . ${SCRIPT_DIR}/../lib/deploy-image-wic/handle-config.sh
 
+if $installer_unattended; then
+    if [ "$(tty)" != "/dev/${INSTALLER_UNATTENDED_TTY}" ]; then
+        dialog --msgbox "Unattended installer is active on ${INSTALLER_UNATTENDED_TTY}. Please wait for it to finish." 7 60
+        installer_unattended=false
+    fi
+fi
 
 if ! $installer_unattended; then
     installer_image_uri=$(find "$installdata" -type f -iname "*.wic*" -a -not -iname "*.wic.bmap" -exec basename {} \;)