Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I purchased and downloaded Mountain Lion from the App Store for my own personal use. I created a bootable USB stick using the Lion Diskmaker utility to make it easier to install and for any future reinstalls.

My boss has also purchased a copy of Mountain Lion from the App Store for her own Macs, but the download is taking forever.

Is there any difference between the USB stick created using my ML download, versus a USB stick created using someone else's ML download? Is it okay to use my USB stick in lieu of someone else's download to upgrade other Macs for people (assuming they already have a license for Mountain Lion)?

Update: I ran a diff --recursive on the two downloads, and the only difference between them was Install OS X Mountain So technically they are slightly different, but functionally they're identical.

share|improve this question
up vote 2 down vote accepted

No, there are no technical differences. And, yes, its ok to use someone else's Mountain Lion image, if you've purchased your own copy.

share|improve this answer

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.