10.9 Boot Drive

I'm trying to create a bootable usb drive of mavericks so I can install it on the new SSD i'm putting into my 2011 macbook pro.

It's a USB2.0 drive so I would think it could take a while but it's been more than an hour now, and the available capacity of the drive is not going down.

Is there a chance this could have frozen or can it just take that long?

Thanks.

Thanks. Should i just eject the drive and try again? Or is there a better way to create a boot drive than terminal?

Thanks

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Ah nevermind. It has just this second sprung back to life and completed.

Thanks anyway.