diff --git a/support/testing/tests/package/test_python_crossbar.py b/support/testing/tests/package/test_python_crossbar.py
index 83649aeec2..178b16be82 100644
--- a/support/testing/tests/package/test_python_crossbar.py
+++ b/support/testing/tests/package/test_python_crossbar.py
@@ -1,4 +1,5 @@
 from tests.package.test_python import TestPythonPackageBase
+import os
 
 
 class TestPythonPy3Crossbar(TestPythonPackageBase):
@@ -13,8 +14,16 @@ class TestPythonPy3Crossbar(TestPythonPackageBase):
         BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARMV5_EABI_GLIBC_STABLE=y
         BR2_PACKAGE_PYTHON3=y
         BR2_PACKAGE_PYTHON_CROSSBAR=y
-        BR2_TARGET_ROOTFS_CPIO=y
-        # BR2_TARGET_ROOTFS_TAR is not set
+        BR2_TARGET_ROOTFS_EXT2=y
+        BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
         """
     sample_scripts = ["tests/package/sample_python_crossbar.py"]
     timeout = 60
+
+    def login(self):
+        ext2_file = os.path.join(self.builddir, "images", "rootfs.ext2")
+        self.emulator.boot(arch="armv5",
+                           kernel="builtin",
+                           options=["-drive", "file=%s,if=scsi,format=raw" % ext2_file],
+                           kernel_cmdline=["rootwait", "root=/dev/sda"])
+        self.emulator.login()