About the Mac OS X Server v10.6.4 Update

This software updates Mac OS X Server v10.6, v10.6.1, v10.6.2, or v10.6.3 to v10.6.4.

This article has been archived and is no longer updated by Apple.

Important: Read before installing.

  • Do not interrupt the installation process. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Support Downloads to update.
  • The Mac OS X Server v10.6.4 Combo Update overwrites the /etc/rc.server file. If you have previously made changes to this file, make a backup copy before updating. Any custom sysctl settings should be configured in /etc/sysctl.conf rather than /etc/rc.server. See man rc.server and the /etc/sysctl.conf.default file for details.
  • You may experience unexpected results if you have third-party system software modifications installed, or if you've modified the operating system through other means. (This does not apply to normal application software installation.)
  • This update can be installed on non-startup volumes, but you should only do this if the current startup volume has already been updated to Mac OS X Server v10.6.4. The simplest way to avoid issues from an improper installation is to start up from the volume that you wish to update.


There are three ways to update to Mac OS X Server version 10.6.4:

  • Use Software Update
  • Install from a standalone installer
  • Install on a remote server via Server Admin or the softwareupdate command-line utility

Software Update installation

Software Update may have referred you to this article. Because some updates are prerequisites for others, you may need to use Software Update more than once to obtain all available updates.

Standalone installer

If you want to download and manually install the update, an installer is available from Apple Support Downloads. This a useful option if you need to update multiple computers but only want to download the update once.

Remote installation

If you need to install the update on a remote server, you can do so using the Server Admin application or the softwareupdate command-line tool.

What's included?

This update includes improvements listed below, as well as ones delivered with the Mac OS X Server version 10.6.1, 10.6.2, and 10.6.3 updates.

Calendar Service

  • Improves performance and reliability of looking up invitees in an LDAP directory.

Directory Services

  • Improves reliability of Directory Services, particularly when Spotlight is enabled on the server.

File Services

  • Fixes an issue that could prevent copying files larger than 2 GB to an SMB volume.

Mail Service

  • Improves reliability of vacation notices.

Server Admin

  • Adds NetBoot/NetInstall model filters for MacBook (13-inch, Mid 2010) and the MacBook Pro (Mid 2010) product line.

Software Update Service

  • Updates now appear more reliably in Server Admin.
  • Improves performance when synchronizing with Apple Software Update server.

System Image Utility

  • Adds NetBoot/NetInstall model filters for MacBook (13-inch, Mid 2010) and the MacBook Pro (Mid 2010) product line.

Wiki Service

  • Improves startup and login performance for wiki, particularly for servers bound to a large directory or hosting a large number of wikis.
  • Movies on wiki pages can now be viewed by iPad users.
  • Allows access to wiki group calendars from the iCal application. (v1.1 only *)
  • Prevents wikis and blogs from becoming inaccessible after migrating  from Leopard Server to Snow Leopard Server. (v1.1 only *)
  • Fixes an issue that could prevent the Wiki service from rebuilding its index (globalindex.db). (v1.1 only *)
  • Allows users to access wikis using a secondary shortname (alias). (v1.1 only *)
  • Shows private blogs to the blog owner. (v1.1 only *)

Additional Improvements

  • Includes Safari 5.0; for more information about Safari 5.0, see this webpage.
  • Improves Mac OS X Server security. For more information about the security content of Mac OS X Server v10.6.4 see this article.
  • Mac OS X Server v10.6.4 also includes all other improvements delivered in the client Mac OS X v10.6.4 Update.

* Note: Improvements for the Wiki Services marked "v1.1 only" are delivered in the Mac OS X Server v10.6.4 Update v1.1. If you installed the original Mac OS X Server v10.6.4 Update, which is build 10F569, or the Mac OS X Server v10.6.4 Update for Mac mini (Mid 2010), which is build 10F2025, you can get the v1.1 improvements by installing the Wiki Server Update 1.0 for Mac OS X Server v10.6.4. Use one of the installation methods listed above.


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