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I want to start with the Crucial SSD Firmware Update and copy the ISO to a bootable Mac USB stick, using a minimal set of tools. I hope that means using only built-in Mac software, such as Disk Utility and Terminal for commands. If necessary, I will reluctantly use a commercial tool. (As of this writing, the latest is Crucial_m4_040H-04-00.zip.)

I've have waded through a muck of articles about how to copy an ISO to a bootable USB stick, but I have not found a solution that works and that I'm comfortable trying.

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Patiently waiting for an answer as well since I have a Crucial m4 and just discovered that the Superdrive in my MBP is no longer functioning :( –  EmmEff Feb 27 '13 at 21:50
    
Macs are quite challenging to create bootable USB sticks for (unless of course you're booting an OS X variant, in which case it's quite simple). My recommendation unfortunately is to go to an Apple Store and ask a Specialist if you can borrow a USB SuperDrive for a few moments with them. You can then burn a blank DVD (that you bring with you) and boot this way. Wish I had a better suggestion. –  bispymusic Mar 2 '13 at 20:16
    
Can you try this youtube.com/watch?v=mndO508xq08 and see if it works for you? –  Stephen Jun 20 '13 at 16:46
    
@David James Please let me know if that link works for you? –  Stephen Jun 20 '13 at 20:32
    
@Stephen Why not post your answer as an answer? –  David James Jun 21 '13 at 3:51

2 Answers 2

I downloaded the Crucial_m4_040H-04-00.zip and followed this tutorial and everything seemed to work for me. I hope this helps.

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And were you able to boot from the USB drive after that? –  jmk Jul 27 '13 at 18:24
    
Yes I was able to boot from the USB drive. –  Stephen Jul 29 '13 at 14:43

Try downloading a bootloader called rEFIt to boot the USB. Delete the EFI folder in the Hard Drive Root folder to remove it.

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Could you enhance your answer by adding a link for rEFIt and more detailed instructions on how to proceed after the download? –  patrix Jul 27 '13 at 14:59

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