Debugging done. Bug fixed.

deploy.sh

@@ -320,7 +320,6 @@ echo \"\${DISK_SIZE[@]}\"
 
 ### --> Disk selection
   TOTAL_NUMBER_OF_DISKS=${#DISK_NAME[@]}
-  echo ${DISK_NAME[@]}
 
   if [ "$TOTAL_NUMBER_OF_DISKS" -eq 0 ]; then
     echo -e "\n\n  ❌ No disks found on the target host. Aborting."
@@ -343,8 +342,7 @@ echo \"\${DISK_SIZE[@]}\"
 NUMBER_OF_BOOT_DISKS=0
   for i in $(seq 0 $(($TOTAL_NUMBER_OF_DISKS - 1))); do
     if printf '%s' "$SELECTED_BOOT_DISK" | grep -iq "${DISK_NAME[$i]}"; then
-      echo "DISK FOUND : ${DISK_NAME[$i]}"
-      NUMBER_OF_BOOT_DISKS=(($NUMBER_OF_BOOT_DISKS + 1))
+      NUMBER_OF_BOOT_DISKS=$(($NUMBER_OF_BOOT_DISKS + 1))
       export "BOOT_DISK_${NUMBER_OF_BOOT_DISKS}_ID=${DISK_ID[$i]}"
       unset "GUM_PRINTED_ELEMENTS[${i}]"
     fi