Apple Mac OS 7.6 - Manual (Page 6)

Step 2: Update your hard disk driver
Hard disks with old drivers might cause problems after installing Mac OS 7.6.
Your computer might not start up, or you might not see the hard disk icons on
the desktop. To avoid these problems, it’s a good idea to update your drivers.
The disk utilities that Apple provides won’t update some disks. You can skip
step 2 if one of the following is true:
m You don’t have an Apple hard disk or you don’t have an Apple computer.
Check the instructions that came with your computer or hard disk to see if
the manufacturer includes or recommends a disk utility, and use that utility
to update the driver. Make sure to get the latest version of the utility from
the manufacturer. An old utility will not be able to update your disk with
the most current driver.
m You’ve previously used a non-Apple disk utility to format your disk or
update the driver. You’ll need to use that utility again to perform the
update. Make sure to get the latest version of the utility from the
manufacturer. An old utility will not be able to update your disk with the
most current driver.
m You have a PowerBook 150 and no external Apple hard disks. PowerBook
150 internal disk drivers are built into the computer’s read-only memory
(ROM) and cannot be updated.
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