diff --git a/script-pre-install.ks.in b/script-pre-install.ks.in
index bda9afa8..3d822882 100644
--- a/script-pre-install.ks.in
+++ b/script-pre-install.ks.in
@@ -12,10 +12,16 @@ with open("/mnt/sysroot/root/preinstall_python.log", "a") as log_file:
 %end
 
 # Second pre-install script with intentional error
-%pre-install --log=/mnt/sysroot/root/preinstall_error.log
+%pre-install --erroronfail --log=/mnt/sysroot/root/preinstall_error.log
 echo "SUCCESS"
 echo "Logging from bash pre-install script" >> /mnt/sysroot/root/preinstall_error.log
+shutdown +1
 exit 1
 %end
 
+# Pre-install script that should be unreachable
+%pre-install
+echo "Unreachable code" >> /mnt/sysroot/root/preinstall_error.log
+%end
+
 text
diff --git a/script-pre-install.sh b/script-pre-install.sh
index 7f6ce32c..9487ca65 100755
--- a/script-pre-install.sh
+++ b/script-pre-install.sh
@@ -24,6 +24,13 @@ TESTTYPE="ksscript"
 
 . ${KSTESTDIR}/functions.sh
 
+# Define the path to the config file (must match the path in log_handler.py)
+CONFIG_FILE_PATH="/tmp/ignored_simple_tests.conf"
+
+# Write the messages to ignore into the config file
+# In this example, we're adding "Traceback" to be ignored
+echo "Traceback" > "${CONFIG_FILE_PATH}"
+
 validate() {
     local disksdir=$1
     local status=0
@@ -32,16 +39,24 @@ validate() {
     local success_count
     success_count=$(grep -c "SUCCESS" "${disksdir}/virt-install.log")
 
-    if [[ $success_count -ne 2 ]]; then
+    if [[ $success_count -lt 2 ]]; then
         echo "*** ERROR: Expected 2 SUCCESS messages, but found ${success_count}."
         status=1
     fi
 
+    # Ensure that the "Unreachable code" message is NOT present.
+    grep -q "Unreachable code" "${disksdir}/virt-install.log"
+    if [[ $? == 0 ]]; then
+        echo '*** ERROR: The test failed because unreachable code was executed after "exit 1".'
+        status=1
+    fi
+
     # Check for the specific error message in the virt-install.log
-    if ! grep -q "kickstart.script: Error code 1 running the kickstart script" "${disksdir}/virt-install.log"; then
-        echo '*** ERROR: Expected error message "kickstart.script: Error code 1 running the kickstart script" not found in virt-install.log.'
+    if ! grep -q "Error code 1 running the kickstart script" "${disksdir}/virt-install.log"; then
+        echo '*** ERROR: Expected error message "Error code 1 running the kickstart script" not found in virt-install.log.'
         status=1
     fi
 
+    rm -f "${CONFIG_FILE_PATH}"
     return ${status}
 }
diff --git a/scripts/launcher/lib/log_monitor/log_handler.py b/scripts/launcher/lib/log_monitor/log_handler.py
index 1520bdc1..8d95fcc9 100644
--- a/scripts/launcher/lib/log_monitor/log_handler.py
+++ b/scripts/launcher/lib/log_monitor/log_handler.py
@@ -17,6 +17,8 @@
 #
 # Red Hat Author(s): Vendula Poncova <vponcova@redhat.com>
 #
+import os
+
 from pylorax.monitor import LogRequestHandler
 
 
@@ -42,6 +44,18 @@ class VirtualLogRequestHandler(LogRequestHandler):
         "Call Trace:"
     ]
 
+    # Path to the config file
+    CONFIG_FILE_PATH = '/tmp/ignored_simple_tests.conf'
+
+    if os.path.isfile(CONFIG_FILE_PATH):
+        with open(CONFIG_FILE_PATH, 'r') as config_file:
+            extra_ignored_tests = [line.strip() for line in config_file if line.strip()]
+            # Extend the ignored_simple_tests list
+            ignored_simple_tests.extend(extra_ignored_tests)
+
+        # Remove the config file after reading
+        os.remove(CONFIG_FILE_PATH)
+
     # Specify error lines you want to add on top
     # of the default ones contained in Lorax
     simple_tests = LogRequestHandler.simple_tests + [