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I have recently purchased a 2009 macbook pro with Yosemite...I want ubuntu and loaded a usb from third party (unetbootin). when I boot from the usb it tells me it can't open but then goes to the menu (try ubuntu, install ubuntu and a couple others) I have tried both of the first two (try and install) yet each time it stops on no controller found. I have also tried this from both usb ports and have made sure disc encryption is turned off. Please help me get back to my ubuntu I really miss it!

user294418
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1 Answers1

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Try adding nomodest parameter in the kernel settings on startup. This tutorial details the process of adding this parameter while booting from live USB/CD.

Ron
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