borgward Posted July 22, 2021 Share Posted July 22, 2021 2006 Intel iMac. I wanted to boot Linux on USB HDD. Wanted to leave OSX on the iMac's internal HDD. Tried many ways. I suspect the iMac will not boot to the external drive becaues of the iMac's firmware. The Linux is configured to boot a Mac. I have Linux installed in a 2006 MacBook. I tried booting the above mentioned USB Linux HDD but it would not boot. Am I correct in thinking that it is the Mac hardware, firmware that is preventing booting to an external USB Drive? No, I do not want to run the Mac from a USB stick. Quote Link to comment Share on other sites More sharing options...
STLVNUB Posted July 23, 2021 Share Posted July 23, 2021 Are you pressing option key when u turn on? If so you should see the usb Quote Link to comment Share on other sites More sharing options...
Guest 5T33Z0 Posted July 23, 2021 Share Posted July 23, 2021 (edited) Is it a Power PC or an intel-based mac? I'Ve noticed that it does not work with some external HDD cases. But more important are the File Systems supportrf by the mac this old… Edited July 23, 2021 by 5T33Z0 Quote Link to comment Share on other sites More sharing options...
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