Repairing Permissions (pre-install)

Could somebody clarify something for me. From information elsewhere on here, I have an upgrade procedure which includes using Disc Utility for disc repair - I understand why this cannot be the copy of DU on my internal drive so needs to be from the copy on the install DVD, but it's also recommended that you repair permissions. Is this also from DU on the DVD or should that be from DU on the internal drive?

"Is this also from DU on the DVD or should that be from DU on the internal drive?"
Ordinarily I don't believe you would have to worry about using the DVD for repairing permissions. Since you will already have the DVD up and running the DU for Disk Repair, you might as well go ahead and do it that way.
I believe DU tells you which way to go once you're inside the utility .. on the top portion of it. You can just load it up and see what it says. It is not going to hurt anything, it won't require you to run anything, and you can back right out of it. So load it up and see what it tells you.

Similar Messages

What happens if I DON'T repair permissions before installing 10.5.2?

What can happen to the installation if permissions aren't repaired? Would the installer quit/freeze? Thanks.

...nothing.
99% of the time, repairing permissions fixes NOTHING.
In fact, repair permissions is mis-named. It does not REPAIR anything. What it does is RESET permissions on the system to the same as the BOM files (bill of materials) files say they had when the OS was installed. If those permissions in the BOM files are wrong, or if they are different to what you as a user WANT them to be (say, you're experienced and know what they're doing), the permissions will be RESET to what the BOM files say.
So "can't hurt, can only help" is IMO bad advice.

Can't repair permissions with Install Disk

My install disk is not recognized by Leopard, which I installed like two months ago and kept up to date on regular basis. I have repaired permissions on various occasions already, but out of the blue, today the disk is ejected with no explanation at all. I tried the disk on another Mac, and it works flawless.
I repaired permissions from the other machine and tried to use the DVD again in my MacBook Pro and again the problem arrises.
Can this be related to the last firmware update?
Thank you very much in advance for any help you can provide.
Lucho

Thanks for your prompt response. Unfortunately, PRAM zap didn't solve the problem, and I watched the hole Bourne Ultimatum film 20 minutes ago....
Luckily the DVD player seems to work with CD's, and DVD's
Still fishing for a trick to end this problem.

When Should I Repair Permissions?

I've been back-reading the posts on repairing permissions after installing software. I'm still not clear on when it needs to be done. If I am installing more than one application, do I repair permissions after each install or only after all installs are completed?
Also, do I need to repair permissions after each Software Update?
MultiMacs

Repair permissions when they're broken. There's a lot of voodoo about this. 99% of the time it means absolutely nothing. Doing it routinely once a month is like locking your car and unlocking it again in the belief that it will run better.
http://daringfireball.net/2006/04/repair_permissions
or
http://daringfireball.net/2006/04/repairpermissionsvoodoo
Regards
TD

FileVault off or on when repairing permissions and updating software?

Does anyone know if FileVault can be left on when repairing permissions and installing apple software updates. I have been turning it off before doing so, but not sure if that's needed. I've been doing that just to be on the safe side.
Using an iMac DVD, with an external firewire HD with OS X 10.3.9 on one of the partitions.
Thanks for any info
iMac DVD + Mac OS 9.1.x G3

FileVault only affects your home folder. Permissions repair repairs only permissions on installed OS packages, which are in system folders. Apple software updates make changes to system folders. Since the system folders aren't affected by FileVault, leaving FV on shouldn't affect these operations.

HT1338 Not repairing permissions

After installing new software I always Repair Permissions.
But recently I have noticed a whole bunch of permissions that will not clear.
It says they are repaired but they appear again if I repair permissions a second time, a third time... every time.
Is this a problem?
Any ideas, please?

No. Repairing permissions after installing software is a waste of time, as is running it more than once per problem you're trying to troubleshoot.
(72771)

Mac won't update software or access iTunes shop. Message comes up with 'not connected to the net. Check connections' error. I still have internet access. Changed my Apple ID but no result. Repaired permissions and re-installed operating system.

Mac won't update software or access iTunes shop. Message comes up with 'not connected to the net. Check connections' error. I still have internet access. Changed my Apple ID but no result. Repaired permissions and re-installed operating system.

It sounds like you may have multiple problems, but none of them are likely to be caused by malware.
First, the internet-related issues may be related to adware or a network compromise. I tend to lean more towards the latter, based on your description of the problem. See:
http://www.adwaremedic.com/kb/baddns.php
http://www.adwaremedic.com/kb/hackedrouter.php
If investigation shows that this is not a network-specific issue, then it's probably adware. See my Adware Removal Guide for help finding and removing it. Note that you mention AdBlock as if it should have prevented this, but it's important to understand that ad blockers do not protect you against adware in any way. Neither would any kind of anti-virus software, which often doesn't detect adware.
As for the other issues, it sounds like you've got some serious corruption. I would be inclined to say it sounds like a failing drive, except it sounds like you just got it replaced. How did you get all your files back after the new drive was installed?
(Fair disclosure: I may receive compensation from links to my sites, TheSafeMac.com and AdwareMedic.com, in the form of buttons allowing for donations. Donations are not required to use my site or software.)

I ran a disk verify & disk repair on my macbook.. both said my system was fine. I keep getting the underlying task reported failure on exit when trying to do disk permission or repair permissions. Also get cant install files in "/applications error. Help

m was fine. I keep getting the underlying task reported failure on exit when trying to do disk permission or repair permissions. Also get cant install files in "/applications error when ever trying to install a driver or update. Help

Hi,
Here's an article for that:
http://support.apple.com/kb/ts1901

I purchased Adobe Acrobat Pro XI for my iMac (Mavericks 10.9.4), downloaded it and have attempted to install it 10 or more times. I have done all the usual maintenance steps (repair permissions, repair disk, etc) and it still won't install. All goes well

I purchased Adobe Acrobat Pro XI for my iMac (Mavericks 10.9.4), downloaded it and have attempted to install it 10 or more times. I have done all the usual maintenance steps (repair permissions, repair disk, etc) and it still won't install. All goes well until the installer gets to "Running Package Scripts" then it stalls or hangs up and does not finish the installation. It runs and runs and runs. It never finishes. I wind up having to force quit the installer. Can anyone point me in the right direction?

Hi jtento ,
Kindly enable the Root Account for the MAC and then try the installation there (in the root account). Please find below the URL to enable the root account.
OS X Mavericks: Enable and disable the root user
Thanks,
Vikrantt Singh

Not permission to install Lion into my iMac HD even after running Disk Tools repairing permissions ???

Not permission to install Lion into my iMac HD even after running Disk Tools repairing permissions ???

Post the exact text of the error message you get.

Pre installed lion repair without Internet connection

Hello
I am having a nightmare, Purchased a brand spanking new 27inch with Lion pre - installed three weeks ago,I like to reinstall to get rid of Garageband and such that I dont need or use, to do this you need to use Recovery HD and then it will reinstall without those mentioned and it will allow you to download them via appstore if and when you want to put them on, fine, however if you have intermitant broadband issues like I and many others have or no broadband at all you are screwed!!! if something bad happens and you need to reinstall and have no internet connection how the **** are you supposed to repair, I spoke with a chap from applecare who understood my predicament,who expalined the following if such a case arises:
1. Take it to a friend who as a internet connection so it can download the lion to be repaired or reinstalled .
2. Take it to a apple re seller to so it can download the lion to be repaired or reinstalled .
3. To burn a copy to a USB to run lion from???
4. Check the internet for alternative methods to create a thumb drive.
Great stuff hey : )...
I explained to him that the Mac had cost me around £1500 so at least I should have the option of downloading a copy from the app store so I could burn to usb, I was told I should be able to do this but then got back to a day later to explain that because it was pre installed I dont have it on my app store account and I only have the Hidden Recovery Partion that needs the internet.
I dont know about you guys but I like to have my own copy to repair and install if any scenario arises, let's say I live in the country and have no internet connection and my mac suddenly stops working, what I would do on my old mac is to boot to dvd and repair or reinstall, not a option here I am afraid,because if you dont have a internet connection you cannot repair. I was told I can either buy a copy from the app store and then burn to USB or order the Lion on a USB thumb drive thus costing more money, it's the principal of paying for Lion when they should allow you to download it free from your account as you have paid for the system in the cost of the Imac.
Below are the ways of making a thumb drive that involves purchasing Lion to begin with:
Option 1: Put a full bootable Lion installation on the USB Drive with a recovery partition.
What you need: an 8G thumb drive and OS X Lion from the App Store.
What you get: A USB stick you can boot off and repair your Lion installation from.
Download the Lion installer from Apple App Store. DO NOT INSTALL IT ONTO YOUR COMPUTER OR THE INSTALLER WILL DELETE ITSELF. MAKE A COPY OF THE INSTALLER. If you have already installed it and it has deleted itself, go back into the App store and click on ‘purchases’ and next to Lion it will say ‘Installed’. Now option-click on ‘purchases’ and ‘installed’ will change to ‘install’ so that you can re-download the installer.
Format your Thumbdrive using a GUID Partition Table, and ‘ Mac OS Extended (Journaled)’, then you can run the Lion installer and install Lion onto the thumb drive.
More info here: http://support.apple.com/kb/HT4718
Option 2: Create a Lion Recovery Disk.
You’ll only need a 4G USB Drive for this option.
What you get: A USB stick you can repair your Lion installation from, but not run Lion from.
If your Macintosh has an existing Lion Recovery partition (this will be the case if Lion came pre-installed on your machine when you purchased your computer from Apple), you can use this method. It will not be a full installer but it will use the internet to install Lion onto another computer. It involves downloading a program from apple called ‘Lion Recovery Disk Assistant’
More info here: http://support.apple.com/kb/DL1433
To test if you have a Lion recovery partition, Just hold down Command-R during startup and Lion will give you the option of going into recovery mode if the recovery partition is there.
Option 3: Make a Lion Installation USB Thumb drive like the one you buy from Apple.
What you get: A USB stick you can install Lion from – like the one that comes from Apple.
You’ll need an 8G USB thumbdrive.
1. Purchase and download the Lion Installer via the App store as in Option 1 above.
2. Right-click on the installer and select “Show Package Contents” and find the file called ”InstallESD.dmg” in the SharedSupport folder.
3. Use Disk Utility to ‘Restore’ this dmg file to a thumb drive to make a Lion Installation USB drive like you buy from the Apple Store. (the thumb drive must first be formatted as Mac OS Extended (Journaled) with GUID Partition Table.)
What are your opinions on this, please don't have a go, I am pointing out a flaw and a bloody great at that in my opinion.
Cheers
J

By the way I am not having a go at Apple just pointing out a scenario I am going through at the moment and if anyone else is having the same issue, and I am aware that you dont need to reinstal Lion to trash Garageband, I would like to know your thoughts and alternatives apart from the ones mentioned above.
Cheers Peeps
J

After installing Mountain Lion. Under sound, where it says select an output device, it say no output devices found and there is no sound. How do I fix this? I have reinstalled the os twice and still the same. I have also repaired permissions.

After installing Mountain Lion. No sound. Under sound, where it says select an output device, it says no output devices found, and there is no sound. How do I fix this? I have reinstalled the os twice and still the same. I have also repaired permissions.

Try resetting the PRAM and SMC...
PRAM Reset:
http://support.apple.com/kb/HT1379
SMC Reset:
http://support.apple.com/kb/HT3964
Hope this helps!

Repair permissions always via install dvd?

Seems that always when I repair permissions (I do it once a week and with every major install) there are the same permissions that are "wrong" every time. And the list seems to get longer.
I always repair just by starting Disk Utility and repairing - without booting from the install dvd. Is that wrong? Should I really do the repair permissions always from the dvd? (Like the app seems to suggest.)
Is there any use doing the task just from the active system or is it really useless?
Please tell me the "most pro way of cleaning up my system".
And as former PC Windows user - why is there no "Find disk errors" type of app? Does Repair Permissions repair disk errors as well?
Thanks for advice!

Hello-
I don't claim to be a 'tech expert' but my understandings seem to work for me. If I'm wrong, I'd be just as interested in other opinions as yourself, so FWIW;
Seems that always when I repair permissions (I do it
once a week and with every major install) there are
the same permissions that are "wrong" every time. And
the list seems to get longer.
The list you see doesn't mean that anything was wrong, just set to something other than what the original permissions called for. If there is a problem you will usually get a red listing indicating a failure of some sort. Although the value of arbitrarily repairing once a week if no OS/app installs or upgrades is questioned by many, the consenus opinion seems to be "it can't hurt".
I always repair just by starting Disk Utility and
repairing - without booting from the install dvd. Is
that wrong? Should I really do the repair permissions
always from the dvd? (Like the app seems to
suggest.)
As I understand it, you are doing the right thing. Some rather knowledgeable folks actually say this is the 'better' way because your version of the OS has most likely been updated to something newer than what's on the Install CD. IOW, you should Repair Disk Permissions based on the same OS version you are repairing.
Please tell me the "most pro way of cleaning up my
system".
There really isn't that much that needs to be done other than following the suggested 'proactive' approach pertaining to perm. repair, standard cache maintenance (if you run your system 24/7 it's automatic, or you can run the routines manually if your comfortable with Terminal. Otherwise, a utility like OnyX -free- is readily available.)
As long as you aren't constantly downloading, installing & removing every piece of junk you can get your mouse on you should be OK.
And as former PC Windows user - why is there no "Find
disk errors" type of app? Does Repair Permissions
repair disk errors as well?
Repair Perms doesn't, but the OS does a much better job than Windows, which needs such a utility because it creates the errors in the first place. Disk Utility does include a Repair Disk function which requires starting up from a different boot disk, but it doesn't need to be used as a matter of 'routine' maintenance.
In the event you do run into problems, these Discussions are one of the most invaluable resources available to you. Don't hesitate to ask & you'll get some excellent advice & guidance on any situation you may encounter. Just wait for considered responses before taking any response at face value.
Regards |:>)

Can I always repair permissions from the install disc, even after updates?

Does anyone know if I can always repair permissions properly from my original install disc that came with my iMac thats 10.4.1. I now am 10.4.3 and was wondering if things change with every update rendering the install disc out of date for permission repair.
I read some where on the internet that after you update from the original OS you should just use disc utility. I know nothing about this sort of thing, any help on this and the types of utilities I might need would be greatly appreciated.

Maybe this is dumb, but what do you mean by don't believe the hype on permissions repair.
are you talking about the posting I read about not being able to continuously update and boot from the original OS disks, or that repairing permissions is overated as far as system maintanence.
I get a lot of conflicting advise on system maintanence. Thats why I ask this. I'm fairly new to macs and how to keep them going problem free.
by the way,...
thanks for the replies guys
Yes, he can do the same with overkill third-party
utilities that aren't on a bootable disc for which
he's already paid. (And is Disk Utility so hard to
use that we need third-party utilies with this
function?)
Hmm. What if he specifically needs a bootable disc
that can repair permissions? Can't assume his
specific needs and environment when he hasn't
detailed them.
Bryan:
Don
't believe the hype about running permissions
repair.

When I run repair permissions I continue to get this message even after a full reformat and re-install of OS. "Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repai

When I run repair permissions I continue to get this message even after a full reformat and re-install of OS. "Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired."

Doug,
According to Apple, Mac OS X: Disk Utility's Repair Disk Permissions messages that you can safely ignore.

Repairing Permissions (pre-install)

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