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

This has probably been discussed before and i tried the solution using disk utility .My partitions are like this


Ideally i wanted to merge the space in c and os .but turns out that is not possible since they are not together .Next thing I try doing is delete A and then try to merge but it wouldnt let me do that(couldnt delete a) .So now I am not sure if there is a way to merge my OS drive with another empty partition .Can you guys suggest some good free 3rd party software to do this?

share|improve this question

Mac has a very useful utility accessible from Terminal.I personally find it much better that the GUI Diskutility. Start up Terminal in Utilities, and type "diskutil help" w/o the quotation marks. You will get a comprehensive list of items which you can do with your disk/volume. I have used it to create, delete, merge, resize volumes/partitions without losing data. Nevertheless you should always backup before venturing. And also check this out.

Hope this helps.

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.