Index: src/wp-admin/includes/upgrade.php
===================================================================
--- src/wp-admin/includes/upgrade.php	(revision 25444)
+++ src/wp-admin/includes/upgrade.php	(working copy)
@@ -1978,10 +1978,17 @@
 		$wpdb->query("ALTER TABLE $wpdb->options DROP INDEX option_name");
 	}
 
-	// Upgrade verions prior to 3.7
-	if ( $wp_current_db_version < 25179 && is_multisite() && is_main_network() && ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
-		$wpdb->query( "ALTER TABLE $wpdb->signups ADD signup_id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST" );
-		$wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain" );
+	if ( $wp_current_db_version < 30000 && is_multisite() && is_main_network() && ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
+		// Upgrade verions prior to 3.7
+		if ( $wp_current_db_version < 25179 ) {
+			$wpdb->query( "ALTER TABLE $wpdb->signups ADD signup_id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST" );
+			$wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain" );
+		}
+
+		if ( $wp_current_db_version < 30000 ) {
+			$wpdb->query( "ALTER TABLE $wpdb->blogs CHANGE COLUMN archived archived varchar(1) NOT NULL default '0'" );
+			$wpdb->query( "ALTER TABLE $wpdb->blogs CHANGE COLUMN archived archived tinyint(2) NOT NULL default 0" );
+		}
 	}
 }
 
Index: src/wp-admin/includes/schema.php
===================================================================
--- src/wp-admin/includes/schema.php	(revision 25444)
+++ src/wp-admin/includes/schema.php	(working copy)
@@ -230,7 +230,7 @@
   registered datetime NOT NULL default '0000-00-00 00:00:00',
   last_updated datetime NOT NULL default '0000-00-00 00:00:00',
   public tinyint(2) NOT NULL default '1',
-  archived enum('0','1') NOT NULL default '0',
+  archived tinyint(2) NOT NULL default '0',
   mature tinyint(2) NOT NULL default '0',
   spam tinyint(2) NOT NULL default '0',
   deleted tinyint(2) NOT NULL default '0',