inkleberry Posted December 31, 2006 Report Share Posted December 31, 2006 I have a G4 with a bad internal ROM drive. I am currently running OS 9.2.I would like to upgrade to OS 10.I have an Iomega USB 2.0 external drive connected to my computer via the USB port in the back.How can I boot from the disk in this external drive?I tried holding "option"- it only found my regular hard drive.I tried holding "cmd-opt-shift-del" but my mac got very confused and blinked a ? at me.How can I boot from the external drive so I can upgrade?ThanksO. Quote Link to post Share on other sites
isteve Posted December 31, 2006 Report Share Posted December 31, 2006 You can't boot os x from a usb drive, only firewire. Cheap thing to do is just replace the dvd drive. Quote Link to post Share on other sites
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