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I downloaded Ubuntu here http://www.Ubuntu.com/desktop/get-ubuntu/download and followed step 2 to create a bootable USB flash drive. But when I restart my MacBook Air and press 'alt' during the restart process I cannot see the USB flash drive.

What I have missed?

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1 Answer

After holding down Option at boot and getting the graphical boot picker, if you saw a disk called something like "EFI Boot", that was probably your USB flash drive.

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