My iMac can default boot to external usb drive?

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1NEWLINUXUSER
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Joined: Sun Aug 25, 2019 8:58 am

My iMac can default boot to external usb drive?

Post by 1NEWLINUXUSER »

Hi. I've been booting an iMac to an external usb drive w/Linux for a while now. Just recently I've noticed that the iMac can get in a mode where it will boot directly to the ext. usb drive without having to press the "Option" key at start up! Just leaving the usb cable attached at start up causes the iMac to bypass the macos and boot directly to the external drive! I don't recall it doing this before. Also, Strartup Disk utility never shows the external drive as an option.

Is this normal or am I looking at a potential problem ? Thanks.
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