diff --git a/tempest/api/compute/images/test_images_oneserver.py b/tempest/api/compute/images/test_images_oneserver.py
index 3c152c9..b811421 100644
--- a/tempest/api/compute/images/test_images_oneserver.py
+++ b/tempest/api/compute/images/test_images_oneserver.py
@@ -15,7 +15,6 @@
 
 from tempest.api.compute import base
 from tempest import config
-from tempest.lib.common import api_version_utils
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
@@ -101,11 +100,5 @@
         # will return 400(Bad Request) if we attempt to send a name which has
         # 4 byte utf-8 character.
         utf8_name = data_utils.rand_name(b'\xe2\x82\xa1'.decode('utf-8'))
-        body = self.compute_images_client.create_image(
-            self.server_id, name=utf8_name)
-        if api_version_utils.compare_version_header_to_response(
-            "OpenStack-API-Version", "compute 2.45", body.response, "lt"):
-            image_id = body['image_id']
-        else:
-            image_id = data_utils.parse_image_id(body.response['location'])
-        self.addCleanup(self.client.delete_image, image_id)
+        self.create_image_from_server(self.server_id, name=utf8_name,
+                                      wait_until='ACTIVE')
diff --git a/tempest/api/identity/v3/test_api_discovery.py b/tempest/api/identity/v3/test_api_discovery.py
index c04c21b..e87d1cd 100644
--- a/tempest/api/identity/v3/test_api_discovery.py
+++ b/tempest/api/identity/v3/test_api_discovery.py
@@ -14,12 +14,24 @@
 #    under the License.
 
 from tempest.api.identity import base
+from tempest import config
 from tempest.lib import decorators
 
 
+CONF = config.CONF
+
+
 class TestApiDiscovery(base.BaseIdentityV3Test):
     """Tests for API discovery features."""
 
+    @decorators.idempotent_id('79aec9ae-710f-4c54-a4fc-3aa25b4feac3')
+    def test_identity_v3_existence(self):
+        versions = self.non_admin_versions_client.list_versions()
+        found = any(
+            "v3" in version.get('id')
+            for version in versions['versions']['values'])
+        self.assertEqual(CONF.identity_feature_enabled.api_v3, found)
+
     @decorators.idempotent_id('721f480f-35b6-46c7-846e-047e6acea0dc')
     @decorators.attr(type='smoke')
     def test_list_api_versions(self):
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index d76a323..dad710c 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -148,7 +148,7 @@
         self.exec_command('sudo umount %s' % mount_path)
 
     def make_fs(self, dev_name, fs='ext4'):
-        cmd_mkfs = 'sudo /usr/sbin/mke2fs -t %s /dev/%s' % (fs, dev_name)
+        cmd_mkfs = 'sudo mke2fs -t %s /dev/%s' % (fs, dev_name)
         try:
             self.exec_command(cmd_mkfs)
         except tempest.lib.exceptions.SSHExecCommandFailed:
diff --git a/tempest/config.py b/tempest/config.py
index 5f91a6d..d67d3e0 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -811,7 +811,7 @@
                default="password",
                help="Password used to authenticate to an instance."),
     cfg.StrOpt('ssh_shell_prologue',
-               default="set -eu -o pipefail; PATH=$$PATH:/sbin;",
+               default="set -eu -o pipefail; PATH=$$PATH:/sbin:/usr/sbin;",
                help="Shell fragments to use before executing a command "
                     "when sshing to a guest."),
     cfg.IntOpt('ping_size',
diff --git a/tempest/tests/common/utils/linux/test_remote_client.py b/tempest/tests/common/utils/linux/test_remote_client.py
index 1f0080f..644a018 100644
--- a/tempest/tests/common/utils/linux/test_remote_client.py
+++ b/tempest/tests/common/utils/linux/test_remote_client.py
@@ -88,7 +88,7 @@
     # the information using gnu/linux tools.
 
     def _assert_exec_called_with(self, cmd):
-        cmd = "set -eu -o pipefail; PATH=$PATH:/sbin; " + cmd
+        cmd = "set -eu -o pipefail; PATH=$PATH:/sbin:/usr/sbin; " + cmd
         self.ssh_mock.mock.exec_command.assert_called_with(cmd)
 
     def test_get_disks(self):