Oct 16, '01 08:19:26PM • Contributed by: Steff-X
Apple included an Open Firmware Password application on the MacOS X 10.1 CD, which allows you to prevent you Mac from being booted from another volume, so people cannot bypass the authorizations defined on your drive. If you want to use this application, you will have to read this macfixit report and also this Tech Info article from Apple.
People who are using non-US keyboards should be aware that MacOS X will use your currently active keyboard (in the keyboard menu) to set the password. However, Open Firmware does not, because keyboard mapping is loaded much later in the boot process. As a consequence, your password will probably not be recognized by Open Firmware at boot time. To work around this, you can use directly Open Firmware to set your password, or you can select the US keyboard from the keyboard menu before setting your password in the Open Firmware Password application.
NOTE:SecureMac revealed a security hole in the password protection.