Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

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.

share|improve this question
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.

share|improve this answer
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.

share|improve this answer
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

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.