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OS X - Operating System General OS operation information and support

OS 10.4 - startup disk from external drive

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cocreator's Avatar
Member Since: Jun 02, 2007
Location: Reno, NV (homebase)
Posts: 2
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Mac Specs: 2 macs (g4 15" 1.5ghz powerbook) (g3 12 800gz ibook)

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Howdy all, I just purchased a used damaged g3 12" 800ghz laptop. The Optical drive does not work. I have 3 questions....

1. How can I reset the System Authorization so that I have full access to system?

2. How can I change the start up disk to look for my external drive first?

3. Any way to install a new Tiger OS without using optical drive?

Thanks in advance, Bryce
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Sherman Homan

Member Since: Oct 27, 2006
Posts: 897
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All three answers are:
If you have another PPC Mac with a Firewire port, then you can do the Target mode trick and install Tiger on the iBook, reset the passwords and tell the 'Book to boot from an external drive.
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cocreator's Avatar
Member Since: Jun 02, 2007
Location: Reno, NV (homebase)
Posts: 2
cocreator is on a distinguished road
Mac Specs: 2 macs (g4 15" 1.5ghz powerbook) (g3 12 800gz ibook)

cocreator is offline
Howdy Sherman. I cant get my target g3 to come
up in TARGET MODE! I followed the info below.
Here's How You Do It

1. Apple says that you should unplug all other FireWire devices from both computers. TDM works whether you do this or not but there may be a "hidden" technical reason so I advise doing as Apple says and disconnecting all FireWire devices before initiating TDM.

2. Make sure that the Target Mac is turned off. (The Host doesn't need to be turned off.)

3. Use your FireWire (6-pin to 6-pin) cable and connect the two Macs.

4. Start up the Target Mac while you hold down the "t" key. You can release the t as soon as the FireWire icon appears. The screen will be a solid color -- blue, green or gray -- and the FireWire icon will be the only thing visible. It's a little scary the first time; but what isn't?

The FW icon sort of bounces around the screen but don't worry, this is normal. The hard drive of the Target Mac should appear on the desktop of the Host Mac. If it doesn't, restart the Host and it will show up.

5. Now that the Target Mac's drive is "in" the Host Mac you can put whatever you need to transfer into the new folder you've created there. Either click and drag to copy it or create and save it there. If you're transferring a FCP movie and it's over 15 minutes long have lunch or something because even though it's a lot faster than ethernet it'll still take a while to copy.

6. When you are finished copying files, drag the Target Mac's HD icon to the Host Mac's Trash or select "Put Away" from the OS 9 File menu or "Eject" from the OS X File menu. Very important; Don't forget this step because if you simply leave TDM (by turning off the Target Mac) before doing it you can lose files.

7. Here's a step that gave me pause but when you think about it, it's the only available method: Use the Target Mac's power button to turn it off. See, there's no desktop or toolbar, just the colored screen with the FireWire icon so the power button is the only way.

8. Unplug the 6 to 6 FireWire cable from both Macs.


The target g3 computer never comes up in target mode when holding th T key
and thus my host g4 powerbook never sees the g3 disk.

The G3 always comes up in USER mode with all of the system
functions unavailable. Any way I can find out the
username and password of the administrator?
thanks Bryce
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