fix: Respect REBUILD=N for legacy Windows media (#1978)

src/install.sh

@@ -696,23 +696,24 @@ setMachine() {
   local iso="$2"
   local dir="$3"
   local desc="$4"
+  local legacy=""
 
-  case "${id,,}" in
+  if ! disabled "$REBUILD"; then
-    "win9"* )
+
-      ETFS="[BOOT]/Boot-1.44M.img" ;;
+    case "${id,,}" in
-    "win2k"* )
+      "win2k"* )   legacy="2k" ;;
-      if ! legacyInstall "$iso" "$dir" "$desc" "2k"; then
+      "winxp"* )   legacy="xp" ;;
-        error "Failed to prepare $desc ISO!" && return 1
+      "win2003"* ) legacy="2k3" ;;
-      fi ;;
+    esac
-    "winxp"* )
+
-      if ! legacyInstall "$iso" "$dir" "$desc" "xp"; then
+    if [ -n "$legacy" ]; then
-        error "Failed to prepare $desc ISO!" && return 1
+      if ! legacyInstall "$iso" "$dir" "$desc" "$legacy"; then
-      fi ;;
+        error "Failed to prepare $desc ISO!"
-    "win2003"* )
+        return 1
-      if ! legacyInstall "$iso" "$dir" "$desc" "2k3"; then
+      fi
-        error "Failed to prepare $desc ISO!" && return 1
+    fi
-      fi ;;
+
-  esac
+  fi
 
   case "${id,,}" in
     "win9"* )