Mac OS 9: Update Firmware Before Installing

When trying to update to Mac OS 9 I receive a message during installation that the computer's firmware is out of date. However, when I try to update the firmware I receive a message that I cannot do this because my System Folder is locked. What should I do?


Possible solution:

You must install the firmware update before installing Mac OS 9.

1. Start up the computer from its hard disk (not from the Mac OS 9 Install CD).
2. Follow the instructions for updating your firmware in the CD Extras folder on your Mac OS CD.
3. After the computer's firmware has been updated, start up the computer from the Mac OS 9 Install CD and proceed with the installation.

When you update the firmware, certain modifications are made to the System Folder. When your computer is started up from the Mac OS 9 install disc, the firmware program is unable to make those modifications because the disc is locked.