Disk permissions problems

[cool11]

I had several 'freeze' incidents last week, and restarts.
I have an early 2011 mbp, with apple's official 256gb ssd, and 10.8.2 installed.
I try to make repair permissions from disk utility, and this is what I get:

Repairing permissions for “Macintosh HD”
Warning: SUID file “usr/bin/at” has been modified and will not be repaired.
Warning: SUID file “usr/bin/atq” has been modified and will not be repaired.
Warning: SUID file “usr/bin/atrm” has been modified and will not be repaired.
Warning: SUID file “usr/bin/batch” has been modified and will not be repaired.
Warning: SUID file “usr/bin/ipcs” has been modified and will not be repaired.
Warning: SUID file “usr/bin/newgrp” has been modified and will not be repaired.
Warning: SUID file “usr/bin/sudo” has been modified and will not be repaired.
Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” has been modified and will not be repaired.
Permissions differ on “System/Library/CoreServices/Software Update.app/Contents/Resources/German.lproj/SUAppLicensePanel.nib”; should be drwxr-xr-x ; they are -rwxr-xr-x .
Repaired “System/Library/CoreServices/Software Update.app/Contents/Resources/German.lproj/SUAppLicensePanel.nib”
Warning: SUID file “usr/lib/sa/sadc” has been modified and will not be repaired.
Warning: SUID file “System/Library/PrivateFrameworks/Install.framework/Versions/A/Resources/runner” has been modified and will not be repaired.
Warning: SUID file “usr/bin/login” has been modified and will not be repaired.
Warning: SUID file “usr/sbin/scselect” has been modified and will not be repaired.


I am working with my mbp after the restarts, but I am worried about these problems and all these restarts.

What does these warning messages mean?
What caused them and what can I do to fix them properly??

 

[cool11]

I found this
http://support.apple.com/kb/TS1448

Also I am wondering if there is any relation with this one that I've already did because I did not want it visible
https://discussions.apple.com/thread/3761896?start=0&tstart=0

What do you think?

 

[cool11]

Can a moderator please move this topic to osx ml section? I think it suits better there.

----
Is there any possibility that 10.8.2 does not installed correctly? Can I re-installed it over existing 10.8.2 system? If this is the case of course.

I also want to say, that I booted my mac with external hd (10.8.2 mirror image) in order to repair permissions with disk utility in internal disk, without using itself. But the warning messages were the same.

 

[cool11]

I need some help.
I hope there is something I can do by myself.
I am worried about the possibility of failure in my machine's.
Am I the only one with such permission unsolved and strange problems?

 

[theSeb]

Try running Disk Utility from the recovery partition. Restart your Mac and hold down alt/opt key. Then choose the recovery partition, run Disk Utility and verify permissions.

What exactly did you do to mach_kernel?

It's unlikely that 10.8.2 is installed incorrectly, but anything is possible with computers these days. You could reinstall OS X over your current copy - it won't delete your data or settings, or you could reinstall just 10.8.2 update by downloading it from Apple directly.

I would make a backup using TM and then do a clean install of Mountain Lion and update to the latest version. Make sure that everything is working fine and then migrate your data/apps/settings from the TM backup.

 

[cool11]

I boot into recovery mode. I did repair permissions but nothing changed.

Here is what I did to mach_kernel file:
https://discussions.apple.com/thread/3761896?start=0&tstart=0
How can I undo it? Can you tell me what should I type in terminal to take it back to the previous state?
I want to try it, maybe this is the problem.

Also I want to tell you something I discovered by chance.
See the screenshots.
Is it possible to have finder version 10.8.1 and osx system 10.8.2?

 

[cool11]

It's unlikely that 10.8.2 is installed incorrectly, but anything is possible with computers these days. You could reinstall OS X over your current copy - it won't delete your data or settings, or you could reinstall just 10.8.2 update by downloading it from Apple directly.

How can I re-install 10.8.2 again?

 

[theSeb]

How can I re-install 10.8.2 again?

Download and run the combo update

http://support.apple.com/kb/DL1581

 

[cool11]

I downloaded the combo update.
I started installation, everything seemed to be ok, but before the installer finish its job, here is the error message I see:

 

[cool11]

I can't even read the whole message in the top of this warning window!
How can I find out what the problem is?

 

[theSeb]

The full message is "There were errors with the installation. You may want to try installing again."

To reverse what you did to mach_kernel, you can type the following:

 sudo chflags nohidden /mach_kernel

If you want your topic moved to the ML section, then you need to hit the report button on your own first post and type in the request there.

----------

Also I want to tell you something I discovered by chance.
See the screenshots.
Is it possible to have finder version 10.8.1 and osx system 10.8.2?

That is normal and perfectly fine.

 

[cool11]

I cannot tell if these warnings are a sign of future problems in my ssd, or it is an internal matter of osx structure.
Is it important or not? Should I ignore it or not?
I never had such problems in the past with the current machine.
Will these warnings disappear someday, or it will getting worse.
What should I do?

 

[theSeb]

I cannot tell if these warnings are a sign of future problems in my ssd, or it is an internal matter of osx structure.
Is it important or not? Should I ignore it or not?
I never had such problems in the past with the current machine.
Will these warnings disappear someday, or it will getting worse.
What should I do?

Normally I would have said to ignore it. I don't think it's a hardware issue. However, the fact that you could not install the 10.8.2 is something to worry about and indicates something has gone wrong with the OS and you may run into issues in the future when trying to update.

I would reinstall ML. You can reinstall by booting into the recovery partition and then clicking on "Reinstall OS X". If you do it like this, then none of your apps or data will be overwritten, but, in theory, all of the operating systems will be installed again. Make sure to backup before you do this, just in case.

Once the reinstall is done, check if you're having the same issues in Disk Utility. If you are, then create a backup and do a clean install of Mountain Lion. Boot into the recovery HD, go into Disk Utility, select your Macintosh HD partition and erase it. Then quit disk utility and click on "Reinstall OS X".

After that is done check in disk utility if the problems have disappeared. If they have, then run Migration Assistant and restore your apps/data/settings. Check again in Disk Utility to see if the problems are not back. If you encounter the same errors in Disk Utility after you've done this, then you need to take the machine to Apple.

 

[cool11]

The quest for an error-free os, goes one.
I installed 10.8 again.
Then disk utility gave me only one line of the errors I posted above.
Better one than dozens of them.
I installed 10.8.2 from combo update.
This messed things a lot.
The same errors again!!!
Now I will install 10.8 again.
Then I will try to update to 10.8.2 through app store, since my previous installation was from combo file.

It seems that I do not really have a real problem, but something bad happens with 10.8.2 installation.

I proceeding now and then I 'll update here.

 

[cool11]

10.8.2 installed from app store again.
All the warning messages of the first post are here again.
So?

 

[cool11]

Am I the only one with 10.8.2 installed and such problems?
Or am I the only one that deals with disk utility's repair permissions?
If I didn't make repairing, I would never discover it.

 

[theSeb]

Am I the only one with 10.8.2 installed and such problems?
Or am I the only one that deals with disk utility's repair permissions?
If I didn't make repairing, I would never discover it.

I am running 10.8.2 on 3 Macs and I don't have the same problems when repairing permissions. I can also reinstall 10.8.2 without errors. When you installed 10.8 again did you do a full clean install by first erasing your Macintosh HD from the recovery partition? That *should* sort this out.

 

[cool11]

No, not clean install.
I hope I will not be forced to do it.
But it sounds strange to me that it is only me with 10.8.2 such problems.
My own machine, the same one, with 10.8, and almost everything is ok.
I update to 10.8.2, and then the problem appears.
I cannot understand.

 

[igorot]

Am I the only one with 10.8.2 installed and such problems?
Or am I the only one that deals with disk utility's repair permissions?
If I didn't make repairing, I would never discover it.

NO, you are not the only one.... I am having the same problem. Not sure how serious a "problem" this really is, but for sure a bit worrying. Unfortunately haven't found a way to fix it. But would be keen to know.

 

[cool11]

I had a hope, that when apple would give us a new osx update, would fix this problem.
Unfortunately, the new one 10.8.3, does not fix it.
Problem still remains.

At the end, I will not know what is 'false' alarm and what is true, because I have to ignore all warnings altogether.

 

[ReformedTexan]

I have been working through a similar problem. I run disk utility and the message I get is:

Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” has been modified and will not be repaired.


UPDATE:
I went to http://support.apple.com/kb/DL1640 and downloaded the update and it removed the error message above when I ran disk utility/verify disk permissions.

however the other message:
ACL differs on “Users/Shared”

is still there and I will research that to see if I can get rid of it.

 

[benwiggy]

Dear God, another thread about Repair Permissions.

1. RP ALWAYS gives confusing and erroneous messages about files whose permissions were "unexpected" or which "should be" something else, but does nothing about it.
http://support.apple.com/kb/ts1448

2. Repairing Permissions is NOT something you need to do regularly, or often. It's effects and capabilities are minimal, to say the least.