Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

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'm trying to chown a volume, but I get "Operation not Permitted" no matter what permissions I change. I'm using OS X Leopard.

users-mac-pro:~ users$ chown 0:0 /Volumes/Snowfx
chown: /Volumes/Snowfx: Operation not permitted
share|improve this question
And why would you want to do that? What problem are you really trying to solve? – slhck Apr 6 '12 at 10:08
I'm trying to test the permissions of this volume. I have full read/write permissions and it's not locked, but chown still won't work. – Iris Apr 6 '12 at 10:12
up vote 2 down vote accepted

I believe you need to prefix the command with sudo.

However I don't see a practical reason for doing what you want. In most cases you want to leave volume's permissions or even ownership alone. As always, be careful with what you do when using sudo.

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.