Super User is a question and answer site for computer enthusiasts and power users. 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 had on Mac Lion OS X just 0.5GB of free space, so I deleted like 15 GB movies => OS X wanted to confirm this operation by filling out the password => I did it and the files were deleted.

I checked again the free space on disk and there is still 0.5GB. I have tried to restart system, but nothing has changed => still 0.5GB of free space.

The thrash is empty. What is wrong with Lion OS X? I have Macbook Pro.


share|improve this question
up vote 2 down vote accepted

Trash ownership is likely to have been set to 'root'.

Go into your terminal and type

sudo chown yourusername .Trash

This should fix the problem.

Hope this helps!

share|improve this answer
Oh yea, I just opened trash and what I don't see inside - 12.000 items => which is 30GB. Thanks! – user984621 Feb 13 '13 at 23:10

This could also be an issue with Timemachine backups. It's known that it has so called "Mobilebackups" sparse disk on your startup disk while the actual drive is not connected. It keeps copies of the backups. You can check it. Go to Finder. Choose "Go->Go to folder" and type "/volumes". If you have "Mobilebackups" there then be sure that it is the cause of not increasing disk space after cleaning Trash. To disable this feature open Terminal and type "sudo tmutil disablelocal". The space on disk will get back in several seconds.

Hope this helps.


share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .