diff --git a/lib/cloudregister/registerutils.py b/lib/cloudregister/registerutils.py
index 7825ff0..5a712b0 100644
--- a/lib/cloudregister/registerutils.py
+++ b/lib/cloudregister/registerutils.py
@@ -30,7 +30,8 @@ import stat
 import subprocess
 import sys
 import time
-import toml
+# Disabled on SLE12
+#import toml
 import yaml
 
 from collections import namedtuple
@@ -75,11 +76,12 @@ def add_hosts_entry(smt_server):
         smt_server.get_FQDN(),
         smt_server.get_name()
     )
-    if smt_server.get_registry_FQDN():
-        entry += '%s\t%s\n' % (
-            smt_ip,
-            smt_server.get_registry_FQDN()
-        )
+    # Disabled on SLE12
+    # if smt_server.get_registry_FQDN():
+    #    entry += '%s\t%s\n' % (
+    #        smt_ip,
+    #        smt_server.get_registry_FQDN()
+    #    )
 
     with open('/etc/hosts', 'a') as hosts_file:
         hosts_file.write(smt_hosts_entry_comment)
@@ -877,6 +879,8 @@ def set_registries_conf(registry_fqdn):
 
 # ----------------------------------------------------------------------------
 def get_registry_conf_file(container_path, container):
+    # Disabled on SLE12
+    return None
     registries_conf = {}
     try:
         with open(container_path, 'r') as registries_conf_file:
@@ -923,6 +927,8 @@ def update_bashrc(content, mode):
 # ----------------------------------------------------------------------------
 def clean_registry_setup():
     """Remove the data previously set to make the registry work."""
+    # Disabled on SLE12
+    return None
     smt = get_smt_from_store(__get_registered_smt_file_path())
     private_registry_fqdn = smt.get_registry_FQDN() if smt else ''
     clean_registry_auth(private_registry_fqdn)
@@ -1193,6 +1199,8 @@ def clean_registries_conf_docker(private_registry_fqdn):
 # ----------------------------------------------------------------------------
 def write_registries_conf(registries_conf, container_path, container_name):
     """Write registries_conf content to container_path."""
+    # Disabled on SLE12
+    return None
     try:
         if container_name == 'podman':
             with open(container_path, 'w') as registries_conf_file:
diff --git a/usr/sbin/registercloudguest b/usr/sbin/registercloudguest
index d32f036..c5f40d3 100755
--- a/usr/sbin/registercloudguest
+++ b/usr/sbin/registercloudguest
@@ -139,6 +139,8 @@ def setup_registry(registration_target, clean='registry'):
     clean == all -> cleans repository and registry setup
     clean == registry -> clean only registry artifacts
     """
+    # Disabled on SLE12
+    return None
     user, password = utils.get_credentials(
         utils.get_credentials_file(registration_target)
     )