diff --git a/basic-suite-master/test-scenarios/test_002_bootstrap.py b/basic-suite-master/test-scenarios/test_002_bootstrap.py
index 8a6ba07f..85473bc9 100644
--- a/basic-suite-master/test-scenarios/test_002_bootstrap.py
+++ b/basic-suite-master/test-scenarios/test_002_bootstrap.py
@@ -1211,6 +1211,10 @@ def test_add_blank_vms(engine_api, ost_cluster_name):
         high_availability=sdk4.types.HighAvailability(
             enabled=False,
         ),
+        bios=sdk4.types.Bios(
+            sdk4.types.BootMenu(False),
+            sdk4.types.BiosType.Q35_SEA_BIOS,
+        ),
         cluster=sdk4.types.Cluster(
             name=ost_cluster_name,
         ),
@@ -1271,6 +1275,10 @@ def test_add_blank_high_perf_vm2(engine_api, ost_dc_name, ost_cluster_name):
                 name=TEMPLATE_BLANK,
             ),
             custom_emulated_machine='pc-q35-rhel8.0.0',
+            bios=sdk4.types.Bios(
+                sdk4.types.BootMenu(False),
+                sdk4.types.BiosType.Q35_SEA_BIOS,
+            ),
             cpu=sdk4.types.Cpu(
                 topology=sdk4.types.CpuTopology(
                     cores=1,
diff --git a/basic-suite-master/test-scenarios/test_004_basic_sanity.py b/basic-suite-master/test-scenarios/test_004_basic_sanity.py
index f139d803..7985a5e4 100644
--- a/basic-suite-master/test-scenarios/test_004_basic_sanity.py
+++ b/basic-suite-master/test-scenarios/test_004_basic_sanity.py
@@ -54,8 +54,8 @@
 SD_SECOND_NFS_NAME = 'second-nfs'
 SD_ISCSI_NAME = 'iscsi'
 
-VM_USER_NAME = 'cirros'
-VM_PASSWORD = 'gocubsgo'
+VM_USER_NAME = 'tc'
+VM_PASSWORD = ''
 
 VM0_NAME = 'vm0'
 VM1_NAME = 'vm1'
@@ -483,7 +483,7 @@ def test_remove_vm2_backup_checkpoints(engine_api, get_vm_service_for_vm):
 
 @pytest.fixture(scope="session")
 def vm0_fqdn_or_ip(tested_ip_version, management_subnet):
-    vm0_address = {'ipv4': VM0_NAME, 'ipv6': str(management_subnet[250])}
+    vm0_address = {'ipv4': VM0_NAME, 'ipv6': VM0_NAME}
     return vm0_address[f'ipv{tested_ip_version}']
 
 
@@ -973,7 +973,7 @@ def test_run_vms(
     if tested_ip_version == 6:
         vms_service = engine_api.system_service().vms_service()
         vm = vms_service.list(search='name={}'.format(VM0_NAME))[0]
-        cirros_serial_console.add_static_ip(vm.id, f'{vm0_fqdn_or_ip}/64', 'eth0')
+        # cirros_serial_console.add_static_ip(vm.id, f'{vm0_fqdn_or_ip}/64', 'eth0')
 
     assert_vm_is_alive(vm0_fqdn_or_ip)
 
diff --git a/ost_utils/pytest/fixtures/deployment.py b/ost_utils/pytest/fixtures/deployment.py
index 7cf36b4e..1b96d474 100644
--- a/ost_utils/pytest/fixtures/deployment.py
+++ b/ost_utils/pytest/fixtures/deployment.py
@@ -146,6 +146,11 @@ def deploy(
         if not request.config.getoption('--skip-custom-repos-check') and not deploy_hosted_engine:
             package_mgmt.check_installed_packages(ansible_all)
 
+    # TEST: replace cirros with oVirt Tiny Core
+    ansible_all.shell(
+        'curl -L -o /var/tmp/cirros.img https://github.com/lveyde/ovirt-tinycore-linux/releases/download/v13.9/oVirtTinyCore64-13.9.qcow2'
+    )
+
     # report package versions
     package_mgmt.report_ovirt_packages_versions(ansible_all)
 
diff --git a/ost_utils/vmconsole.py b/ost_utils/vmconsole.py
index 174d13e3..e3e5e4e9 100644
--- a/ost_utils/vmconsole.py
+++ b/ost_utils/vmconsole.py
@@ -105,8 +105,6 @@ def _login(self):
             self._pre_login()
             self._read_until_prompt('login: ')
             self._write(f'{self._user}\n')
-            self._read_until_prompt('Password: ')
-            self._write(f'{self._passwd}\n')
             self._read_until_bash_prompt()
             self._logged_in = True
             yield
@@ -191,7 +189,7 @@ def _write(self, entry):
 
 class CirrosSerialConsole(VmSerialConsole):
     def __init__(self, private_key_path, vmconsole_proxy_ip):
-        super(CirrosSerialConsole, self).__init__(private_key_path, vmconsole_proxy_ip, 'cirros', 'gocubsgo')
+        super(CirrosSerialConsole, self).__init__(private_key_path, vmconsole_proxy_ip, 'tc', '')
 
     def assign_ip4_if_missing(self, vm_id, iface):
         ip = self.get_ip(vm_id, iface, 4)