Before you install

You use the Installer program to install, reinstall, or update system software on a startup disk.

SImportant: Before you install a new version of system software, make a backup copy of your current System Folder on another disk in case you need it later (to use a program that is incompatible with the new system software,

for example). S

The Installer lets you update your system software without losing special files (fonts, sounds, and so on) you may have installed.

Before you install, reinstall, or update system software:

mYour hard disk must be initialized, a process that prepares the disk to store information. (All Apple computers have their hard disks initialized at the factory.)

mYou need the system software disks that came with your computer or your system software upgrade kit, or you need access to the system software over a network, on another hard disk, or (if your computer can be used in SCSI disk mode) on a desktop Macintosh.

Installing system software

If you have access to the system software on a network, open the Installer program and then follow this procedure, beginning with step 4. To install system software from another hard disk or a desktop Macintosh, see the chapter on expanding your computer system.

Make sure the system software you’re using is the correct version for your computer.

1.Shut down your computer.

2.Insert the Install Me First disk into the floppy disk drive.

3.Turn on your computer.

The Installer program opens automatically.

74 Chapter 5: Setting Up Your Programs

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Apple Duo 270C manual Before you install, Installing system software, For example. S, Installer program opens automatically