diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 8eec4b5..f2ba321 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -353,6 +353,8 @@
     build_command.extend(["-t", prop_dict["mount_point"]])
     if "timestamp" in prop_dict:
       build_command.extend(["-T", str(prop_dict["timestamp"])])
+    if "block_list" in prop_dict:
+      build_command.extend(["-B", prop_dict["block_list"]])
     build_command.extend(["-L", prop_dict["mount_point"]])
     if (needs_projid):
       build_command.append("--prjquota")
@@ -360,8 +362,9 @@
       build_command.append("--casefold")
     if (needs_compress or prop_dict.get("f2fs_compress") == "true"):
       build_command.append("--compression")
-    if (prop_dict.get("f2fs_compress") == "true"):
+    if (prop_dict.get("mount_point") != "data"):
       build_command.append("--readonly")
+    if (prop_dict.get("f2fs_compress") == "true"):
       build_command.append("--sldc")
       if (prop_dict.get("f2fs_sldc_flags") == None):
         build_command.append(str(0))