Can't boot into Open Firmware

Discussion in 'iMac' started by sio, Jan 24, 2009.

  1. sio macrumors newbie

    Jan 24, 2009
    So I was given an old iMac a couple of days ago (tray-loading iMac G3 running OS 9.2). I played around with OS9 for a while, but quickly got frustrated at the lack of a command line, so I decided to install NetBSD on it. The install process seems fairly straightforward, the only problem being that I can't get into Open Firmware.

    What I've done is hit CMD+OPTION+O+F during the bootup chime - nothing. I've tried many different variations on this, trying at many points during the bootup process.

    According to what I've read online, all of the iMacs have Open Firmware 3+ - is this right?

    I've Googled to no avail.

    Does anyone have any ideas? Many thanks in advance.
  2. vandozza macrumors 6502a


    Jun 14, 2006
  3. sio thread starter macrumors newbie

    Jan 24, 2009
    Okay, all I'm able to tell from Wikipedia is that it's a tray-loading G3. I'm not sure about the revision as I can't figure out how to find the processor speed or any of the other specs.

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