Update existing install to OSX Server

WARNING. Installing this on top of your current install will make a new administrator account and demote your current admin account to standard. Also all of your users docks will be reset to the server default. Make sure you backup your system before continuing! If you are sure you want to continue read on…

First things first you'll need to turn on invisible files.

Once you've done that open your server install dvd or disk image and browse to /System/Installation/Packages/

Install the server layer by running the MacOSXServerInstall.mpkg file. After rebooting you will be faced with the server setup procedure and prompted for your serial, for most users I would go with the standard settings.

Repair permissions then run Marvins on the partition to fix the server crashing with segmentation faults using my cpuid file attached.

If you now look at About this Mac you will see you are now only running server version 10.5.0. You now need to use Zephs ASU to update the server layer to match your client side with Mac OS X Server Update Combined making sure to tick modify only. After ASU runs you will be left with a modified PKG folder with two pkg files in it. If you are already running 10.5.4 all you now need to install is MacOSXServerUpdCombo10.5.4.pkg and reboot.

After updating to 10.5.4 the original serial I used became invalid prompting me for a new one. You'll have to find one in the usual places like I did.

Finally you'll also probably find you are getting lots of 'folder not found' postfix errors in the console. To fix them repair postfix by typing the following in Terminal:

sudo /etc/postfix/post-install create-missing

Happy serving!