diff --git a/build.sh b/build.sh
index e069000c7..9a06082dd 100755
--- a/build.sh
+++ b/build.sh
@@ -91,6 +91,7 @@ usage() {
     echo "  --drivers       Build kernel modules and user-space apps only"
     echo "  --spi           Build SPI tools only"
     echo "  --cpld          Build CPLD bitstreams only (requires Quartus Docker)"
+    echo "  --image         Build Linux SD card image (requires ARM cross-compiler)"
     echo "  --clean         Clean all build artifacts"
     echo "  --help          Show this help"
     echo ""
@@ -352,6 +353,56 @@ build_cpld() {
     done
 }
 
+#-------------------------------------------------------------------------------------------------------
+# Build Linux SD card image using Build_FusionX.sh.
+#-------------------------------------------------------------------------------------------------------
+
+build_image() {
+    log_info "Building Linux SD card image..."
+
+    local BUILD_SCRIPT="${SOFTDIR}/linux/Build_FusionX.sh"
+    local IMAGE_OUTPUT="${SOFTDIR}/linux/project/image/output/images"
+
+    if [ ! -f "${BUILD_SCRIPT}" ]; then
+        log_skip "Build_FusionX.sh not found at ${BUILD_SCRIPT}"
+        return
+    fi
+
+    if ! command -v ${CROSS_PREFIX}gcc &>/dev/null; then
+        log_skip "ARM cross-compiler (${CROSS_PREFIX}gcc) not found - cannot build Linux image"
+        return
+    fi
+
+    if [ ! -d "${SOFTDIR}/linux/kernel" ] || [ ! -d "${SOFTDIR}/linux/boot" ]; then
+        log_skip "Linux kernel/boot source tree not found"
+        return
+    fi
+
+    chmod +x "${BUILD_SCRIPT}"
+    log_info "  Running Build_FusionX.sh -f nand -p ssd202 -o 2D06 ..."
+    if "${BUILD_SCRIPT}" -f nand -p ssd202 -o 2D06 2>&1; then
+        # Check for output images.
+        local has_output=false
+        if [ -f "${IMAGE_OUTPUT}/sdrootfs.tar.gz" ]; then
+            log_ok "Image: sdrootfs.tar.gz"
+            has_output=true
+        fi
+        if [ -f "${IMAGE_OUTPUT}/SigmastarUpgradeSD.bin" ]; then
+            log_ok "Image: SigmastarUpgradeSD.bin"
+            has_output=true
+        fi
+        if [ -f "${IMAGE_OUTPUT}/SigmastarUpgrade.bin" ]; then
+            log_ok "Image: SigmastarUpgrade.bin"
+            has_output=true
+        fi
+        if ! ${has_output}; then
+            log_fail "Linux image build produced no output files"
+        fi
+    else
+        log_fail "Linux image build (Build_FusionX.sh)"
+    fi
+}
+
 #-------------------------------------------------------------------------------------------------------
 # Clean all build artifacts.
 #-------------------------------------------------------------------------------------------------------
@@ -386,6 +437,7 @@ BUILD_CPM=false
 BUILD_DRIVERS=false
 BUILD_SPI=false
 BUILD_CPLD=false
+BUILD_IMAGE=false
 BUILD_ALL=false
 DO_CLEAN=false
 
@@ -402,6 +454,7 @@ while [ $# -gt 0 ]; do
         --drivers)  BUILD_DRIVERS=true ;;
         --spi)      BUILD_SPI=true ;;
         --cpld)     BUILD_CPLD=true ;;
+        --image)    BUILD_IMAGE=true ;;
         --clean)    DO_CLEAN=true ;;
         --help|-h)  usage ;;
         *)          echo "Unknown option: $1"; usage ;;
@@ -425,6 +478,7 @@ if ${BUILD_ALL} || ${BUILD_CPM};     then build_cpm;      fi
 if ${BUILD_ALL} || ${BUILD_DRIVERS}; then build_drivers;  fi
 if ${BUILD_ALL} || ${BUILD_SPI};     then build_spi;      fi
 if ${BUILD_ALL} || ${BUILD_CPLD};    then build_cpld;     fi
+if ${BUILD_ALL} || ${BUILD_IMAGE};   then build_image;    fi
 
 echo ""
 echo "========================================"
diff --git a/software/linux/Build_FusionX.sh b/software/linux/Build_FusionX.sh
index 328ecbbf3..7dbf14027 100755
--- a/software/linux/Build_FusionX.sh
+++ b/software/linux/Build_FusionX.sh
@@ -8,10 +8,11 @@
 ##                  This script builds the complete OS and software set required for FusionX.
 ##                  It builds the Linux kernel, rootfs filesystem, U-boot loader and apps.
 ##
-## Credits:         
+## Credits:
 ## Copyright:       (c) SigmaStar, tailoring by Philip Smart for FusionX
 ##
 ## History:         October 2022   - Initial tailoring for FusionX
+##                  March 2026     - Fixed hardcoded paths to be relative to project root.
 ##
 ## Synopsis:        Build_FusionX.sh -f nand -p ssd202 -o 2D06 -m 256
 ##
@@ -47,20 +48,14 @@ done
 
 DATE=$(date +%m%d)
 BACKUPDIR=$(date +%m%d%H%M)
-#images will output in ${RELEASEDIR}/images/
-RELEASEDIR=`pwd`
-FUSIONXDIR=`pwd`\..\FusionX
-WEBSRVDIR=`pwd`\..\WebServer
-Z80EMUDIR=`pwd`\..\Z80emu
-#release source code
-#find ./boot/ | grep -v boot/.git | cpio -pdm ${RELEASEDIR}/
-#find ./project/ | grep -v project/.git | cpio -pdm ${RELEASEDIR}/
-#find ./kernel/ | grep -v kernel/.git | cpio -pdm ${RELEASEDIR}/
-#find ./sdk/ | grep sdk/verify | grep -v sdk/verify/application/smarttalk | cpio -pdm ${RELEASEDIR}/
 
-#save code version
-#repo manifest -o snapshot.xml -r
-#cp snapshot.xml ${RELEASEDIR}/sdk_version.xml
+# Resolve the script's directory to establish relative paths.
+SCRIPTDIR="$(cd "$(dirname "$0")" && pwd)"
+RELEASEDIR="${SCRIPTDIR}"
+SOFTWAREDIR="$(cd "${SCRIPTDIR}/.." && pwd)"
+FUSIONXDIR="${SOFTWAREDIR}/FusionX"
+WEBSRVDIR="${SOFTWAREDIR}/WebServer"
+Z80EMUDIR="${SOFTWAREDIR}/Z80emu"
 
 export ARCH=arm
 
@@ -69,14 +64,14 @@ echo chose ${flashtype}
 if [ ! "${project}" = "2D06" -a ! "${project}" = "2D07" ]; then
 	project=2D07
 	#exit 1
-fi	
+fi
 
 # Make the output directories if not present.
 mkdir -p ${RELEASEDIR}/project/image/output/
 for f in miservice appconfigs customer vendor rootfs images
 do
     mkdir -p ${RELEASEDIR}/project/image/output/$f
-done 
+done
 
 export PROJECT=${project}
 
@@ -127,7 +122,7 @@ if [ "${flashtype}" = "nor" ]; then
 		echo "Make Kernel 2"
 		make infinity2m_ssc011a_s01a_minigui_defconfig
 	fi
-	
+
 else
 	if [ "${fastboot}" = "fastboot" ]; then
 		echo "Make Kernel 3"
@@ -137,7 +132,7 @@ else
 		#make infinity2m_spinand_ssc011a_s01a_minigui_defconfig
 		make ${KERNEL_DEFCONFIG}
 	fi
-	
+
 fi
 if [ "${clean}" = "1" ]; then
 	make clean
@@ -160,9 +155,9 @@ if [ "${flashtype}" = "nor" ]; then
 	fi
 else
 	if [ "${fastboot}" = "fastboot" ]; then
-		if [ "${chip}" = "ssd201" ]; then 
+		if [ "${chip}" = "ssd201" ]; then
 			./setup_config.sh ./configs/nvr/i2m/8.2.1/spinand.ram-glibc-squashfs.011a.64
-		elif [ "${chip}" = "ssd202" ]; then	
+		elif [ "${chip}" = "ssd202" ]; then
 			./setup_config.sh ./configs/nvr/i2m/8.2.1/spinand.ram-glibc-squashfs.011a.128
 		fi
 	else
@@ -191,7 +186,7 @@ else
 	else
 		./release.sh -k ${RELEASEDIR}/kernel -b 011A -p nvr -f spinand -c i2m -l glibc -v 8.2.1
 	fi
-	
+
 fi
 
 cd ${RELEASEDIR}/project
@@ -284,9 +279,9 @@ if [ -d ${Z80EMUDIR} ]; then
     mkdir -p ${RELEASEDIR}/project/image/output/sdrootfs/apps/Z80/
     cp -r Z80/* ${RELEASEDIR}/project/image/output/sdrootfs/apps/Z80/
 fi
-if [ -d /srv/dvlp/Projects/tzpu/FusionX/software/linux/project/custom ]; then
+if [ -d ${RELEASEDIR}/project/custom ]; then
     echo -n "Custom "
-    cd /srv/dvlp/Projects/tzpu/FusionX/software/linux/project/
+    cd ${RELEASEDIR}/project/
     mkdir -p ${RELEASEDIR}/project/image/output/sdrootfs/apps/custom/
     cp -r custom/* ${RELEASEDIR}/project/image/output/sdrootfs/apps/custom/
 fi
@@ -294,13 +289,17 @@ fi
 # Copy any new files.
 for f in DSK MZF CPM BAS CAS Basic
 do
-    mkdir -p ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/disk/
-    cp -r /srv/dvlp/Projects/tzpu/FusionX/software/${f}/ ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/disk/${f}/
+    if [ -d ${SOFTWAREDIR}/${f} ]; then
+        mkdir -p ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/disk/
+        cp -r ${SOFTWAREDIR}/${f}/ ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/disk/${f}/
+    fi
 done
 
-# Copy an new rom images.
-mkdir -p ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/roms/
-cp -r /srv/dvlp/Projects/tzpu/FusionX/software/roms/* ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/roms/
+# Copy any new rom images.
+if [ -d ${SOFTWAREDIR}/roms ]; then
+    mkdir -p ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/roms/
+    cp -r ${SOFTWAREDIR}/roms/* ${RELEASEDIR}/project/image/output/sdrootfs/apps/FusionX/roms/
+fi
 
 # Make any manual setup changes.
 #echo "/dev/zram0     none swap sw 0 -1"         >> ${RELEASEDIR}/project/image/output/sdrootfs/etc/fstab
@@ -342,14 +341,7 @@ echo "      /dev/sdc3       6293504 62333951 56040448 26.7G 83 Linux"
 echo "  mkfs.vfat /dev/<sd partition 1>"
 echo "  mkfs.ext2 /dev/<sd partition 3>"
 echo "  mkdir -p /mnt/upgrade; mount /dev/<sd partition 1> /mnt/upgrade"
-echo "  mkdir -p /mnt/rootfd;  mount /dev/<sd partition 3> /mnt/rootfs"
+echo "  mkdir -p /mnt/rootfs;  mount /dev/<sd partition 3> /mnt/rootfs"
 echo "  cp ${RELEASEDIR}/project/image/output/images/SigmastarUpgradeSD.bin /mnt/upgrade/FusionX.bin"
-echo "  cd /mnt/rootfs; tar -xvf /dvlp/Projects/tzpu/FusionX/software/linux/project/image/output/images/sdrootfs.tar.gz; sync; sync"
+echo "  cd /mnt/rootfs; tar -xvf ${RELEASEDIR}/project/image/output/images/sdrootfs.tar.gz; sync; sync"
 echo "  cd /; umount /mnt/upgrade; umount /mnt/rootfs"
-
-#tar -cvzf boot_${DATE}.tar.gz boot
-#tar -cvzf kernel_${DATE}.tar.gz kernel
-#tar -cvzf project_${DATE}.tar.gz project
-#tar -cvzf sdk_${DATE}.tar.gz sdk
-
-