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Apple Computing Products:
macOS - Notebook Hardware
Startup from USB drive
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<blockquote data-quote="pavlaki62" data-source="post: 77631"><p>Hi *</p><p></p><p>It was formatted as MAC HFS (Journaled) - System Preferences sees it as a valid OS/X startup choice.</p><p></p><p>What is interesting is that if I try to install OS/X on the USB drive, Installer reports that it will not be bootable. Interesting...</p><p></p><p>Question: - is just simply not possible to boot from certain USB devices? Is it because the USB subsystem is only available at a certain boot level? whereas FireWire is available at a much lower system level?</p></blockquote><p></p>
[QUOTE="pavlaki62, post: 77631"] Hi * It was formatted as MAC HFS (Journaled) - System Preferences sees it as a valid OS/X startup choice. What is interesting is that if I try to install OS/X on the USB drive, Installer reports that it will not be bootable. Interesting... Question: - is just simply not possible to boot from certain USB devices? Is it because the USB subsystem is only available at a certain boot level? whereas FireWire is available at a much lower system level? [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Startup from USB drive
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