Disk Utility has not found ANY permissions to repair for many months now through multiple updates. Mac OS X Lion 10.7.4 (11E53). I tried running permissions repair through terminal and it ran just fine and found nothing to repair.
By the way, I have no RAID drives... just 4 internal and 2 external. I have sent a bug report also.
My machine has started crashing on start up or starting up slowly.... which may or may not be related.
Just adding my 2 cents.
I know this is old Michael, and who knows if you are still around, but your post gave me a good laugh I'm not making fun or anything, but the way it's written makes it sound like you couldn't repair permissions on your wives. I absolutely know how that feels!!! Anyway, again, not making fun, just thanking the list for a hearty chuckle.
If the diskutility GUI does not repair permissions how can the command line do any better? Diskutil used the same repair packages.
So with 10.6.8 and RAID volume it does not seem possible to repair disk permissions. I have tried the GUI, command line and Cocktail - they all of course do the same thing, which does not work. What does work is if you go in and change permissions manually with chmod.
I have 1Tb external hard drive. And I am not professional. I had same problem exactly like yours. I tried to repair my HD but couldn't repair. Finally I found Miro was using my hard drive. I quit miro and tried again. It solved my problem. error message was something like- live volume or I don' t remember.
l0l0's post is helping me do my repairs on an external softRAID tower via Terminal.
"Repair Disk" didn't work in Disk Utility but I'm able to run things in Terminal.
I used this step:
then I did:
sudo diskutil repairDisk diskx (mine was at disk8)
then I did:
sudo diskutil repairVolume diskx (mine was at disk8)
These worked for me.
I tried Disk Utility again hoping I had jumpstarted it but it still doesn't work.
I wonder if Disk Utility is somehow not running with sufficient permissions...(the sudo makes you the boss of Terminal).
I'm going to explore some more.
Anyone trying to repairPermissions on an external or internal drive that doesn't have a bootable OS on it, it will be greyed out.
Reparing Permissions is only for boot drives.
I kinda have the same problem.. Disk utility will do the Verify Disk Permissions, and Repair Disk Permissions, but the Repair Disk button is not active. Upon disk verification it says I have to repair it but it won't work. I tried restarting it like it says but still won't work.