Thread: Wiping out OS
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harryb2448

 
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Member Since: Nov 28, 2007
Location: Nambucca Heads Australia
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Mac Specs: iMac i5 2.7GHz OS X.9.4 and OS X.10

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Yes you can upgrade to OS X.5.8which is it for a PowerPC G4. Make sure the disc you have is a black retail full install DVD and not a silver/grey system disc which are extremely model specific. Pop the Leopard DVD in, reboot and hold down 'C' after the chime and see if the iMac boots from it.

If all is good proceed as described above.

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
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