5 Replies Latest reply: Jan 20, 2008 10:09 PM by Stacie Grundmeier
no_read_no_write Level 2 Level 2 (355 points)
is there something wrong? pressing cmdoption+of will not let me boot into open firmware?

any other way to enter open firmware?

thanks

macbook 2nd gen

mac mini 1.25 ppc 1gig ram:: macbook c2d 2ghz 1gb ram, Mac OS X (10.4.10), pentium 4@2.4ghz 768mb ram
  • 1. Re: open firmware
    Kappy Level 10 Level 10 (226,775 points)
    There is no Open Firmware on Intel Macs. They use EFI firmware. Why do you need to access it? You can still access single-user mode the same way as on PPC Macs.

    It is possible to work with the EFI firmware but you will need rEFIt - VersionTracker or MacUpdate.
  • 2. Re: open firmware
    no_read_no_write Level 2 Level 2 (355 points)
    any known commands on how to enter efi? (without using refi) thanks
  • 3. Re: open firmware
    Kappy Level 10 Level 10 (226,775 points)
    No, sorry. There is no particular need for the user to interact with the firmware other than to set the Firmware Password for which there is a separate utility included on the installer discs.
  • 4. Re: open firmware
    Stacie Grundmeier Level 1 Level 1 (0 points)
    yes but here's my problem... i need to change my user name from standard to administrator but the problem is i have firmware and it wont let me use the disk.....so i how can i disable firmware to change that and i need to do it so i can install my printer. I read an artical that said: Disabling Password Protection

1) Boot into the Open Firmware. (Command + Option + O + F)

2) Type "setenv security-mode none" and press return.

3) Enter in the password at the password request prompt and press return.

4) Then type "reset-all" to restart the computer.


Force Removing Password Protection

1) Add or remove DIMMs to change the total amount of RAM in the computer.

2) Then, the PRAM must be reset 3 times. (Command + Option + P + R).
    But i can't figure it out....can you please help me i need to install my printer soon to print things off for college.
  • 5. Re: open firmware
    Stacie Grundmeier Level 1 Level 1 (0 points)
    yes but here's my problem... i need to change my user name from standard to administrator but the problem is i have firmware and it wont let me use the disk.....so i how can i disable firmware to change that and i need to do it so i can install my printer. I read an artical that said: Disabling Password Protection

1) Boot into the Open Firmware. (Command + Option + O + F)

2) Type "setenv security-mode none" and press return.

3) Enter in the password at the password request prompt and press return.

4) Then type "reset-all" to restart the computer.


Force Removing Password Protection

1) Add or remove DIMMs to change the total amount of RAM in the computer.

2) Then, the PRAM must be reset 3 times. (Command + Option + P + R).
    But i can't figure it out....can you please help me i need to install my printer soon to print things off for college.