diff --git a/configs/example/gem5_library/arm-ubuntu-boot-exit.py b/configs/example/gem5_library/arm-ubuntu-boot-exit.py
index 7125e4887a..163f45a1d3 100644
--- a/configs/example/gem5_library/arm-ubuntu-boot-exit.py
+++ b/configs/example/gem5_library/arm-ubuntu-boot-exit.py
@@ -41,7 +41,6 @@ scons build/ARM/gem5.opt -j<NUM_CPUS>
 
 """
 
-import os
 from gem5.isas import ISA
 from m5.objects import ArmDefaultRelease
 from gem5.utils.requires import requires
@@ -51,7 +50,6 @@ from m5.objects import VExpress_GEM5_Foundation
 from gem5.components.boards.arm_board import ArmBoard
 from gem5.components.memory import DualChannelDDR4_2400
 from gem5.components.processors.cpu_types import CPUTypes
-from gem5.resources.resource import CustomDiskImageResource
 from gem5.components.processors.simple_processor import SimpleProcessor
 
 # This runs a check to ensure the gem5 binary is compiled for ARM.
@@ -90,10 +88,15 @@ processor = SimpleProcessor(
 
 # The ArmBoard requires a `release` to be specified. This adds all the
 # extensions or features to the system. We are setting this to Armv8
-# (ArmDefaultRelease) in this example config script.
+# (ArmDefaultRelease) in this example config script. However, the ArmBoard
+# currently does not support SECURITY extension.
 
 release = ArmDefaultRelease()
 
+# Removing the SECURITY extension.
+
+release.extensions.remove(release.extensions[2])
+
 # The platform sets up the memory ranges of all the on-chip and off-chip
 # devices present on the ARM system.
 
@@ -128,9 +131,9 @@ board.set_kernel_disk_workload(
 
     disk_image = Resource("arm64-ubuntu-18.04-img"),
 
-    # We need to specify the path for the bootloader file `boot.arm64`.
+    # We need to specify the path for the bootloader file.
 
-    bootloader = Resource("arm64-bootloader"),
+    bootloader = Resource("arm64-bootloader-foundation"),
 
     # For the arm64-ubuntu-18.04.img, we need to specify the readfile content
 
diff --git a/src/python/gem5/components/boards/arm_board.py b/src/python/gem5/components/boards/arm_board.py
index 73002e9616..84346584b0 100644
--- a/src/python/gem5/components/boards/arm_board.py
+++ b/src/python/gem5/components/boards/arm_board.py
@@ -75,6 +75,7 @@ class ArmBoard(ArmSystem, AbstractBoard, KernelDiskWorkload):
     **Limitations**
     * The board currently does not support ruby caches.
     * stage2 walker ports are ignored.
+    * This version does not support SECURITY extension.
     """
     __metaclass__ = ABCMeta