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I am unable to install ubuntu 12.04 onto a Macbook Pro 4,1 or even mount it on an iMac with a lion install after following guide on install page. Is this issue known or am I doing something wrong?

The USB shows a CD sized FAT partition on the 4GB USB.

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Duplicate: – Chan-Ho Suh May 10 '12 at 9:06

i have been unable to boot Ubuntu from USB drives on my MacBook. It is tricky because your USB drive has to be formated in a special way. I am not sure about the details, but there are some guides here. Installing REFIT might you with booting, but i would simply use a Live CD for booting. There is a special version for Macs available here: or simply use this direkt link:

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