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10.5: Solve a repair permissions issue after 10.5.8 update System 10.5
According to this thread in Apple Discussions, some users are noticing some odd entries in Disk Utility's Repair Permissions function after running the Combined Updater and then repairing permissions. It seems a number of files are coming up with absolutely no permissions. Other users, though, are seeing no such problems. After a long exchange, user 'Gerben Wierda' seems to have figured out the cause and a solution.

Gerben describes the problem and the suggested solution:
For files not installed yet, their permissions (and owner) are taken from nonexisting files during the update process and stored in the package Receipts (Base system). Obviously, the combo update may affect more files. Installing the update twice -- without repairing permissions between -- re-reads permissions from the files which, at that point, are available and the receipts are fixed.
So basically, if you installed the combined updater and then repaired permissions, you need to install the combined updater twice, back to back, and then repair permissions will work properly. I haven't tested this, as (being very honest here) I only ever consider repairing permissions on my system if I've got an issue that seems like it might be related to permissions.
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10.5: Solve a repair permissions issue after 10.5.8 update | 18 comments | Create New Account
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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: BlaatMekker on Aug 13, '09 07:59:06AM

For me the problem is that some files are symlinks where it isn't expected, so this (probably) doesn't fix anything for me.



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Ilmars on Aug 13, '09 09:18:24AM

It worked as described, at least for me.

Ilmars



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: hamarkus on Aug 13, '09 09:30:28AM

This fixes the 'no-permissions' issue, but there are still quite a number of permissions which will show up in every permission repair (or verification) since 10.5.8.



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Klaus1 on Aug 13, '09 02:34:33PM
Much of which misses the point:

Permissions you can ignore on 10.5:

http://support.apple.com/kb/TS1448?viewlocale=en_US

using 'should be -rw-r--r-- , they are lrw-r--r--' as an example, you will see the that the permissions are not changed, but the | indicates a different location. This is because an update to Leopard changed the location of a number of system components.

As regards System Update I tend to agree: it can be flakey. Best to download updates direct from Apple - and to keep backup copies.

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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Dr. T on Aug 13, '09 09:57:26AM

This is yet another example of the misuse of repair permissions. For reasons unknown, many users believe they should repair permissions immediately before, immediately after, and sometimes during (by intercepting the restart) system updates. These mistaken beliefs are often accompanied by the beliefs that you should restart the Mac in Safe Boot mode before updating the OS, and that you should force a Safe Boot for the first restart after updating.

Apple does not recommend any of these mythological means of avoiding update problems. They are more likely to cause problems (as the orginal posting showed) than to prevent them.

Here's my never-failed-yet method for system updates. 0. Make a full clone backup of your startup drive. 1. Download the combo updater* and make sure it's the correct size (sometimes you get just a partial download). 2. Repair permissions. 3. Run DiskWarrior and perform repairs if needed. 4. Run the combo updater and wait for the reboots (as many as three). 5. Check the System Preferences settings: Software Update, Energy Saver, Spotlight, Time Machine, Bluetooth, and Print and Fax settings have changed on me after updates.

* I don't use Software Update because it has too many problems. The biggest one is attempting to update from an incomplete install file. I have a fairly slow satellite internet connection, and Software Update's (and Safari's and Firefox's) download monitoring don't always work correctly with slow, variable speed downloads. Even when the installer is OK, the incremental upgrade installers fail much more often than combo updaters.



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: mjperson on Aug 13, '09 10:42:24AM

In your opening you say,
"For reasons unknown, many users believe they should repair permissions immediately before, immediately after, and sometimes during (by intercepting the restart) system updates."

and

"Apple does not recommend any of these mythological means of avoiding update problems. They are more likely to cause problems (as the orginal posting showed) than to prevent them."

Then you go on to describe your upgrade process:

"2. Repair permissions. 3. Run DiskWarrior and perform repairs if needed."

What are those two even doing there? If you are having no system problems, don't be messing with your permissions. If you *are* having problems, resolve them *before* you start messing with upgrading...

Sure, keep frequent backups, especially before changes, but your upgrade path should consist of 1) start with stable system, 2) run the updater.



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: frgough on Aug 13, '09 10:45:58AM

No kidding. Here's how I do it:

Accept the updates offered by Apple Software update.

Been doing this for 5 years of OS X use and have never had a problem.

Some people are just paranoid.



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Agree
Authored by: hamarkus on Aug 14, '09 02:54:57PM

I also just install updates via Software Update. I only run permissions repair when I get bored or when I have reason to believe it might be necessary (as in after the last Flash update, which as reported by others did screw up a couple of permissions).



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: las_vegas on Aug 13, '09 07:17:19PM
I don't use Software Update because it has too many problems. The biggest one is attempting to update from an incomplete install file.

Apple's Software Update will never attempt an install of an incomplete install file. The first step after downloading the file is to check the checksum of the file. An incomplete file will always fail and will be rejected.

I have only once had a problem with an update from the automated update system and the problem was that the update failed to download every time. Manually downloading and installing that update solved the problem.

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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Anonymous on Aug 18, '09 09:41:40AM

"My cargo cult is better than yours!"

But why, in the hint, is Mijnheer Wierda's name in quotes? I can see why you'd do that for a pseudonym like "rogb", but a real name? Odd.



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: imageworx on Aug 19, '09 06:10:12AM

There is some contradiction there, DrT.

I've never had issue as long as my original system is good, along with my drive condition.

-(Optional) Run Disk Warrior (latest version) to make sure drive structure is good.
-Disk Utility Verify (either booting up in Single User mode and FSCK -fy or booting from OS X disc and running Disk Utility). Repair if issues.
-Clone the Known Good OS (backup AFTER repairs!).
-Use the Combo Updater*.
-Any further updates. (Check for 3rd party updates...)
-There shouldn't be any need for file permission repairs unless something changes the permissions (3rd party apps like Adobe, Quark, etc..)

I've "never had any issues" with vanilla systems. I did (once) have issues with third party support (Sonnet eSata card drivers, Symantec, Wacom drivers, ATI and nVidia drivers...). YMMV.

*The combo updater apparently installs all previous update changes (10.5.1->10.5.7) where the Delta update only installs the current version updates. This can work for folks that don't install any apps/drivers that might change the system. IMHO, I've had good success with the combo vs delta.
I don't understand how one can download the combo incompletely and have it even run (aren't there checksums?).

I look forward to 10.6... :)

---
To BeOS or Not to BeOS



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Brian G. on Aug 13, '09 03:39:35PM

I never repair permissions. There is no need and I never have problems. If permissions are screwed up, it is user error.



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re: incorrect permissions exclusively due to user error
Authored by: rbsandkam on Aug 13, '09 11:32:33PM

I agree that there is a great deal of paranoia surrounding this issue, but what you are saying is just not true.

Install Quark XPress 7 and then check your permissions.
You will find that the QXP installer has decimated the permissions on everything in your Application folder.
It is not user error, it is the installer.

Whether this has the potential to mess up an OS upgrade, I do not know.
But there is no doubt that something besides user error has caused a great number of files to have incorrect permissions assigned.

It would be foolish to believe that there are not other poorly written installers in existence.



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re: incorrect permissions exclusively due to user error
Authored by: cavenewt on Aug 15, '09 12:38:36PM

The Quark 7 (and possibly 6, I don't remember) installer was horrible in that it reset the permissions on every file in the folder enclosing the new Quark folder, which, in most cases, would be your Applications folder. I actually had a Quark representative on site when I discovered this, and his eyes got real big when I showed it to him (the permissions repair after that took 30-40 minutes of constant scrolling in the Repair Permissions window.) The workaround was to make a new, empty folder and then tell Quark to install inside of THAT folder, then after installation, move the newly-created Quark folder into the main Applications.

I haven't seen any other installer so poorly behaved since then, but it sure is possible. Epson might have some issues--I see tons of Epson file permissions get repaired on many client machines I work on.



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Spinnetti on Aug 16, '09 07:31:29PM

nice answer. Do you say the same thing if you get a flat tire on your car?



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: Spinnetti on Aug 16, '09 07:30:03PM

I did try this, but my system is still jacked up. I can no longer move or delete any files on my boot camp partition when in MacOS. Any ideas? I tried this tip, repairing disc, double update install with permissions fix after etc..



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10.5: Solve a repair permissions issue after 10.5.8 update
Authored by: drudus on Aug 18, '09 01:10:12PM
Boot camp partitions are read only because Mac OS cannot mount NTFS file systems as read & write. If you are 100% sure you could read & write before the updates then consider a reinstall.
Use Disk Utility (/Applications/Utilities) to confirm the format of the boot camp partition. It would be worth reading the Boot camp FAQ http://support.apple.com/kb/HT1656 before you start again.


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10.5: Solve a repair permissions issue in 10.5.7
Authored by: charlie2k on Aug 20, '09 12:38:40PM
I'm running 10.5.7 on this macbook 2.53, and I have a strange variation on this theme - I can run the disk utilities as many times as I like in all three accounts, and iTunes and Quicktime keep the same permissions mistakes over and over. The end of disk permissions repair in Utilities comes saying that all permissions were repaired, and I can run it immediately again, and it "repairs" the same permissions again. In all three accounts.

Any help would be appreicated. I have a screenshot of the utitilies with history visible here [link:]http://sublime-dezine.com/images/repairs-history.jpg


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