+2.4 How to build the Debian based image for ARM64 arch
+------------------------------------------------------
+
+2.4.1 Prerequisite for Debian build environment
++++++++++++++++++++++++++++++++++++++++++++++++
+
+NOTE:
+ * The build env only tested on HPE RL300 server (Ampere Altra).
+ * The build system for Debian requires a Linux system with Docker and python 3.x installed. The the following steps have been tested on Debian 11.
+
+* Refer to `Install docker on ubuntu`_ or `Install docker on centos`_ to install docker.
+* Refer to `Configure_Debian_build_environment`_ to install prerequisite packges and configure for Debian build environment.
+
+.. _`Install docker on debian`: https://docs.docker.com/engine/install/debian/
+.. _`Configure_Debian_build_environment`: https://wiki.openstack.org/wiki/StarlingX/DebianBuildEnvironment#Configure_build_environment
+
+2.4.2 Use wrapper script build_stx_debian.sh to build the Debian based image
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+::
+
+ # Get the wrapper script to build the debian image
+ $ wget -O build_stx_debian.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_debian/build_stx_debian.sh;hb=HEAD'
+
+ $ chmod +x build_stx_debian.sh
+ $ WORKSPACE=/path/to/workspace
+ $ ./build_stx_debian.sh -w ${WORKSPACE} -a arm64
+
+
+The build-image will always fail for now, do the following workaround after build-image fails:
+
+::
+
+ cd ${WORKSPACE}
+ source env.prj-stx-deb
+ cd src/stx-tools
+ source import-stx
+
+ stx shell --container lat
+
+ # inside the LAT pod
+ cd /localdisk
+ . /opt/LAT/SDK/environment-setup-cortexa57-wrs-linux
+ appsdk --log-dir log genimage lat.yaml
+
+If all go well, you will get the ISO image in:
+${WORKSPACE}/localdisk/deploy/starlingx-qemuarm64-cd.iso