Apple Macintosh System 7.5 - Manual (Page 17)

Update the driver from the Disk Tools 2 disk
Note: If you have a PowerBook 150, you do not need to update the driver.
Skip this section and go on to “Step 4: Check the Before You Install disk.”
If you are using the Disk Tools 2 disk, follow these steps:
1 Double-click the Drive Setup icon to open it.
2 In the list of drives, click the disk you want to update.
3 Pull down the Functions menu and choose Update Driver.
If Update Driver is not available in the Functions menu, see Chapter 7
(“Troubleshooting”).
4 When a message tells you that the update is complete, choose Quit from the File menu.
5 Eject the Disk Tools 2 disk.
9 Installing System Software
Do not click Initialize.