diff --git a/lib/host.py b/lib/host.py
index d7031a9bc..4876a82b6 100644
--- a/lib/host.py
+++ b/lib/host.py
@@ -201,13 +201,13 @@ def execute_script(self, script_contents, shebang='sh', simple_output=True):
             script.write('#!/usr/bin/env ' + shebang + '\n')
             script.write(script_contents)
             script.flush()
-            self.scp(script.name, script.name)
+            self.scp(script.name, "/tmp/" + script.name.split('/')[-1])
 
             try:
                 logging.debug(f"[{self}] # Will execute this temporary script:\n{script_contents.strip()}")
-                return self.ssh([script.name], simple_output=simple_output)
+                return self.ssh(["/tmp/" + script.name.split('/')[-1]], simple_output=simple_output)
             finally:
-                self.ssh(['rm', '-f', script.name])
+                self.ssh(['rm', '-f', "/tmp/" + script.name.split('/')[-1]])
 
     def _get_xensource_inventory(self) -> Dict[str, str]:
         output = self.ssh(['cat', '/etc/xensource-inventory'])
diff --git a/tests/storage/ext/conftest.py b/tests/storage/ext/conftest.py
index 3b09f0819..020d332e2 100644
--- a/tests/storage/ext/conftest.py
+++ b/tests/storage/ext/conftest.py
@@ -2,9 +2,12 @@
 import pytest
 
 @pytest.fixture(scope='package')
-def ext_sr(host, sr_disk):
+def ext_sr(host, sr_disk, vdi_image_format):
     """ An EXT SR on first host. """
-    sr = host.sr_create('ext', "EXT-local-SR-test", {'device': '/dev/' + sr_disk})
+    sr = host.sr_create('ext', "EXT-local-SR-test", {
+        'device': '/dev/' + sr_disk,
+        'preferred-image-formats': vdi_image_format
+    })
     yield sr
     # teardown
     sr.destroy()
@@ -22,3 +25,7 @@ def vm_on_ext_sr(host, ext_sr, vm_ref):
     # teardown
     logging.info("<< Destroy VM")
     vm.destroy(verify=True)
+
+@pytest.fixture(params=["qcow2", "vhd"], scope="session")
+def vdi_image_format(request):
+    return request.param
diff --git a/tests/storage/ext/test_ext_sr.py b/tests/storage/ext/test_ext_sr.py
index 8697219c7..88762161b 100644
--- a/tests/storage/ext/test_ext_sr.py
+++ b/tests/storage/ext/test_ext_sr.py
@@ -15,9 +15,12 @@ class TestEXTSRCreateDestroy:
     def test_create_sr_with_missing_device(self, host):
         try_to_create_sr_with_missing_device('ext', 'EXT-local-SR-test', host)
 
-    def test_create_and_destroy_sr(self, host, sr_disk):
+    def test_create_and_destroy_sr(self, host, vdi_image_format, sr_disk):
         # Create and destroy tested in the same test to leave the host as unchanged as possible
-        sr = host.sr_create('ext', "EXT-local-SR-test", {'device': '/dev/' + sr_disk}, verify=True)
+        sr = host.sr_create('ext', "EXT-local-SR-test", {
+            'device': '/dev/' + sr_disk,
+            'preferred-image-formats': vdi_image_format
+        }, verify=True)
         # import a VM in order to detect vm import issues here rather than in the vm_on_xfs_fixture used in
         # the next tests, because errors in fixtures break teardown
         vm = host.import_vm(vm_image('mini-linux-x86_64-bios'), sr_uuid=sr.uuid)