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OS X - Operating System General OS operation information and support

What does repair disk permissions exactly do?


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ryebread761

 
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I have heard about using Disk Utility to repair your disk permissions somewhat around the web and am wondering a few things abut it.

1. What is the same/different from Verify disk permissions?

2. Should I do this and if so how often?

3. Is it possible to harm my mac with this if not used correctly?

4. How does this help your mac?

5. Can this do anything to bootcamp?

Any other important information on what this does?
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BrianLachoreVPI

 
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Start by reading this About Disk Utility's Repair Disk Permissions feature and since you asked the question, I came across this as after I switched, I was also curious to learn more. Would be interesting to hear from the more learned folks here as to their opinion on this (admittedly old) article.
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pigoo3

 
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These links should help:

About Disk Utility's Repair Disk Permissions feature

Repairing permissions: What you need to know | Utilities - Page 1 | Macworld

Repair permissions - Wikipedia, the free encyclopedia

OS X Maintenance And Troubleshooting
(thanks for this one Randy)!

Is Your Mac Running Slow? Try to Repair Permissions | New Mac User

Plenty more where these came from.

HTH,

- Nick

- Computer slow, too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some speedup tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
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bobtomay

 
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Yeah, I read that report at Unsanity early on in my use of OS X. Figured since he was a dev, pretty well respected, he must know what he's talking about. So, I didn't suggest it for the longest time after that.

True enough according to what he says there may be some underlying thing that caused the permissions to be wacky to begin with and it probably would be best to fix that underlying issue.

That'd be great if there were a whole bunch of us that knew the underlying OS a lot better than we do, could read all those console logs and really understand what in the world we were looking at. Truth is, I don't (well, maybe a little bit now), and my guess is, the vast majority of us pleeb users don't understand those logs either.

After a couple of years hanging around forums and seeing the results of Repair Permissions being run as the result of others suggesting it and the strangest problems you can imagine disappearing afterwards time and time again, well...

Most folks don't care why their machine isn't working. They just want it fixed so they can get back to doing what it was they were doing.

I'm sure he was right, the suggestion to Repair Permissions is probably made a whole lot of times when it's not going to do a thing to fix the issue. But, it's too easy and only takes a couple of minutes. Read a few thousand posts over the course of 2-3 years and you start seeing how often it does work. For myself, it's worthy of being towards the top of the list - not the last resort.

Maybe if I understood the OS better, could read the logs and figure out underlying problems based on those a lot faster. In the meanwhile...

I cannot be held responsible for the things that come out of my mouth.
In the Windows world, most everything folks don't understand is called a virus.
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pigoo3

 
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Quote:
Originally Posted by bobtomay View Post
That'd be great if there were a whole bunch of us that knew the underlying OS a lot better than we do, could read all those console logs and really understand what in the world we were looking at. Truth is, I don't (well, maybe a little bit now), and my guess is, the vast majority of us pleeb users don't understand those logs either.

After a couple of years hanging around forums and seeing the results of Repair Permissions being run as the result of others suggesting it and the strangest problems you can imagine disappearing afterwards time and time again, well...

Most folks don't care why their machine isn't working. They just want it fixed so they can get back to doing what it was they were doing.
I with ya! Repairing permissions is just too darn easy to do...so why not! What it does, or how it does it's magic...I don't need to know the details. But when I see this:

...Permissions differ...should be lrwxr-xr-x , they are lrw-r--r--...

All I know is...if Disk Utility fixes it to what it "should be" from what "they are"...then I'm all good!

- Nick

- Computer slow, too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some speedup tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
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