diff --git a/core/includes/install.inc b/core/includes/install.inc
index f39f2f4..d017773 100644
--- a/core/includes/install.inc
+++ b/core/includes/install.inc
@@ -637,9 +637,11 @@ function drupal_install_system() {
 
   // Set the schema version to the number of the last update provided by the
   // module, or the minimum core schema version.
+  $system_version = \Drupal::CORE_MINIMUM_SCHEMA_VERSION;
   $system_versions = drupal_get_schema_versions('system');
-  $system_version = $system_versions ? max($system_versions) : 0;
-  $system_version = max($system_version, \Drupal::CORE_MINIMUM_SCHEMA_VERSION);
+  if ($system_versions) {
+    $system_version = max(max($system_versions), $system_version);
+  }
   \Drupal::keyValue('system.schema')->set('system', $system_version);
 
   // System module needs to be enabled and the system/module lists need to be
diff --git a/core/includes/schema.inc b/core/includes/schema.inc
index 6e672e4..51653a1 100644
--- a/core/includes/schema.inc
+++ b/core/includes/schema.inc
@@ -8,6 +8,7 @@
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Database\Database;
 use Drupal\Core\Utility\SchemaCache;
+use Drupal\Core\Extension\ExtensionSchemaVersionException;
 
 /**
  * @addtogroup schemaapi
@@ -138,7 +139,17 @@ function drupal_get_schema_versions($module) {
       }
     }
     // Ensure that updates are applied in numerical order.
-    foreach ($updates as &$module_updates) {
+    foreach ($updates as $module => &$module_updates) {
+      // No module is allowed to define a schema update of exactly
+      // \Drupal::CORE_MINIMUM_SCHEMA_VERSION because this is reserved for the minimum
+      // installed version.
+      if (in_array(\Drupal::CORE_MINIMUM_SCHEMA_VERSION, $module_updates)) {
+        throw new ExtensionSchemaVersionException(format_string("%module's hook_update_N() implementations must use N greater than @version.", array(
+          '%module' => $module,
+          '@version' => \Drupal::CORE_MINIMUM_SCHEMA_VERSION,
+        )));
+      }
+
       sort($module_updates, SORT_NUMERIC);
     }
   }
diff --git a/core/includes/update.inc b/core/includes/update.inc
index b17624f..e51af86 100644
--- a/core/includes/update.inc
+++ b/core/includes/update.inc
@@ -984,7 +984,7 @@ function update_get_update_list() {
   $modules = drupal_get_installed_schema_version(NULL, FALSE, TRUE);
   foreach ($modules as $module => $schema_version) {
     // Skip uninstalled and incompatible modules.
-    if ($schema_version == SCHEMA_UNINSTALLED || update_check_incompatibility($module)) {
+    if ($schema_version == SCHEMA_UNINSTALLED || $schema_version < \Drupal::CORE_MINIMUM_SCHEMA_VERSION || update_check_incompatibility($module)) {
       continue;
     }
     // Otherwise, get the list of updates defined by this module.
diff --git a/core/lib/Drupal/Core/Extension/ExtensionSchemaVersionException.php b/core/lib/Drupal/Core/Extension/ExtensionSchemaVersionException.php
new file mode 100644
index 0000000..2b166ac
--- /dev/null
+++ b/core/lib/Drupal/Core/Extension/ExtensionSchemaVersionException.php
@@ -0,0 +1,13 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Extension\ExtensionSchemaVersionException.
+ */
+
+namespace Drupal\Core\Extension;
+
+/**
+ * Exception thrown when the extension's schema version is not allowed.
+ */
+class ExtensionSchemaVersionException extends \Exception { }
diff --git a/core/lib/Drupal/Core/Extension/ModuleHandler.php b/core/lib/Drupal/Core/Extension/ModuleHandler.php
index 9dc3998..e69ec31 100644
--- a/core/lib/Drupal/Core/Extension/ModuleHandler.php
+++ b/core/lib/Drupal/Core/Extension/ModuleHandler.php
@@ -629,9 +629,11 @@ public function install(array $module_list, $enable_dependencies = TRUE) {
 
         // Set the schema version to the number of the last update provided by
         // the module, or the minimum core schema version.
+        $version = \Drupal::CORE_MINIMUM_SCHEMA_VERSION;
         $versions = drupal_get_schema_versions($module);
-        $version = $versions ? max($versions) : 0;
-        $version = max($version, \Drupal::CORE_MINIMUM_SCHEMA_VERSION);
+        if ($versions) {
+          $version = max(max($versions), $version);
+        }
 
         // Install default configuration of the module.
         config_install_default_config('module', $module);