I thought the EFI exists as a hidden partition on the hard drive, so if I had
to replace the hard drive with one Apple didn't bless with this, how will the
machine even know what to do when powered on with a blank new drive, waiting to
be reinstalled? I'm surprised EFI only exists on mac's. I think it's needed for
Linux sometimes because I hear of a USB Dongle version called EFI X when I
searched for EFI settings or something like that, but not sure what this thing
is good for.
----- Original Message -----
From: Nicolai Svendsen
To: macvisionaries@googlegroups.com
Sent: Friday, March 05, 2010 3:02 PM
Subject: Re: Open Firmware
Hi,
Intel Macs do not have Open Firmware. That was a mistake on my part. EFI
doesn't seem to have an interface, though I suppose that the Boot Manager is
the only exception capable of directly accessing the EFI. The only thing EFI
does have is Legacy BIOS support so that operating systems requiring a BIOS to
load such as Microsoft Windows are capable of doing so. Hopefully, Apple will
create a direct way of accessing the Extensible Firmware Interface at some
point, but it doesn't look like it is possible right now. I'm sure it provides
the same features and even more than the Open Firmware for the Power-based
Macs, so that's very exciting if it can be directly accessed someday.
Regards,
Nic
Skype: Kvalme
MSN Messenger: nico...@home3.gvdnet.dk
AIM: cincinster
yahoo Messenger: cin368
Facebook Profile
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On Mar 5, 2010, at 9:48 PM, Brent Harding wrote:
Do new macs even have this any more? I would think the EFI must have
similar settings to play with somewhere, but not sure where they are.
----- Original Message -----
From: Nicolai Svendsen
To: macvisionaries@googlegroups.com
Sent: Friday, March 05, 2010 8:45 AM
Subject: Open Firmware
Hi guys,
You can get access to Open Firmware by holding Command-Option-O-F down as
soon as you power on your Macintosh. Here, you can get information about
installed RAM, your device tree and so-forth. You can also simulate an
arbitrary size of RAM less than the total installed RAM in your actual machine.
You can also disable RAM sticks in your computer, though other RAM sticks will
run as before except those that are disabled.
Here is my question.
While you can run a telnet service within Open Firmware, I am guessing
there is no accessibility at this point. Is the only way to actually Telnet
through to your Mac via another computer so you can receive the text? I'm
guessing that's the solution.
Regards,
Nic
Skype: Kvalme
MSN Messenger: nico...@home3.gvdnet.dk
AIM: cincinster
yahoo Messenger: cin368
Facebook Profile
My Twitter
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