My external flash drive is not detected.

my external flash drive is detected on my macbook air, and i can read the files, copy and paste, but it is not seen startup boot tab...

since i want to format my macbook, there is no way i can boot from the external flash drive.

any script that i should jot in the terminal. knowing that my flash drive is detected on the desktop but not on the startup boot section or tab.

please advise.

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Have you tested it anywhere to be sure you have a boot-able flash drive? Is there a reason why you don't use Recovery Partition to reformat your MB HD?


How is the drive formatted? Exactly which MBA do you have? What OS X is installed on this drive?


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