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10 Chapter 1 Before You Begin
When you upgrade a server, you perform an upgrade installation from the server
installation disc on your server computer. Data and settings are automatically
preserved for you, and manual adjustments are minimal. If you’ve been using
Macintosh Manager to manage Mac OS 9 client computers, you can continue to do
so—an option not available when you migrate. See the documentation for your version
10.2 or 10.3 server for Macintosh Manager information.
Even if your existing server meets the minimum requirements for upgrading, you may
want to migrate instead of upgrade. For example, you may be updating some of your
computers and decide that you want to reestablish your server environment on one or
more of the newer computers.
Migrating From a Pre-Version 10.4 Server to Version 10.4
Migrations from Mac OS X Server versions 10.3.9, 10.2.8, 10.1.4 and 10.1.5, and 1.2; and
from AppleShare IP version 6.3.3 are supported. When you migrate, you install and
perform initial setup of Mac OS X Server version 10.4 on a computer, restore files onto
the version 10.4 computer from the pre-10.4 computer, and make manual adjustments
as required. Migrating Macintosh Manager data is not supported.
You’ll need to migrate, not upgrade, to Mac OS X Server version 10.4.7 if:
 Your version 10.2.8 or 10.3.9 server’s hard disk needs reformatting.
 Your version 10.2.8 or 10.3.9 server doesn’t have:
 A PowerPC G4 or G5 processor.
 Built-in FireWire.
 At least 512 megabytes (MB) of random access memory (RAM)
 At least 10 gigabytes (GB) of disk space available.
 You want to move data and settings you’ve been using on a version 10.2.8 or 10.3.9
server to different server hardware.
 The server version you’ve been using is earlier than version 10.2.8.
If you want to migrate using a Mac OS X Server version 10.4 installation disc that is
version 10.4.6 or earlier, your replacement server must have a PowerPC G3, G4, or G5
processor; built-in FireWire; at least 128 MB of RAM (256 MB or more required for high-
demand servers running multiple services); and at least 4 GB of disk space available.