diff --git a/bin/sau b/bin/sau
index 8f6f37d..6a0605f 100755
--- a/bin/sau
+++ b/bin/sau
@@ -16,10 +16,19 @@ def main():
     conf = sau.config
     log = logging.getLogger(sau.LOGNAME)
     platform = sau.platforms.get_platform()
-    reboot_required = platform.system_upgrade()
-    platform.pkg_upgrade()
 
-    reboot_recommended = sau.services.restart_services()
+    reboot_required = False
+    reboot_recommended = False
+
+    if conf.getboolean('default', 'do_system_upgrade', fallback=True):
+        reboot_required = platform.system_upgrade()
+
+    if conf.getboolean('default', 'do_package_upgrade', fallback=True):
+        platform.pkg_upgrade()
+
+    if conf.getboolean('default', 'do_service_restart', fallback=True):
+        reboot_recommended = sau.services.restart_services()
+
     if conf.getboolean('default', 'do_reboot', fallback=False):
         if reboot_required:
             log.warning('Rebooting because of a system upgrade')
diff --git a/config.cfg b/config.cfg
index 84daa64..c3b1843 100644
--- a/config.cfg
+++ b/config.cfg
@@ -16,6 +16,10 @@ min_version_diff=2
 # not close all deleted files (any platform)
 do_reboot=no
 
+do_system_upgrade=yes
+do_package_upgrade=yes
+do_service_restart=yes
+
 
 # The packages section contains <package>=<version_diff> pairs to override the
 # default min_version_diff. Note that package naming may differ depending on