Features of Open Firmware Password Protection

When turned on, Open Firmware Password Protection:

* blocks the ability to use the "C" key to start up from a CD-ROM disc.
* blocks the ability to use the "N" key to start up from a NetBoot server.
* blocks the ability to use the "T" key to start up in Target Disk Mode
　　 (on computers that offer this feature).
* blocks the ability to start up in Verbose mode by pressing the Command-V key
　　combination during startup.
* block the ability to start up a system in Single-user mode by depressing
　　the Command-S key combination during startup.
* blocks a reset of Parameter RAM (PRAM) by pressing
　　the Command-Option-P-R key combination during startup.
* requires the password to use the Startup Manager, accessed by pressing
　　the Option key during startup (Figure 1).
* requires the password to enter commands after starting up in Open Firmware,
　　 which is done by depressing the Command-Option-O-F key combination during startup.

だってさ。リセットされねーじゃん。