You need to repair permissions from the same operating system version as the drive that contains the permissions you want to repair.
I went through this myself and found that, if you call DW Customer Service, they will provide you will a disc containing a compatible OS for about 20 bucks including shipping. Otherwise you can continue to use Disk Utility for repairing permissions.
I think it unfortunate that Alsoft even bothered to <ahem> enhance DiskWarrior by including
permission repairs.
Perhaps they were trying to get out from under that "one trick pony" rug... but, permissions!? Historically (say from 10.3.4... and all through Tiger... and apparently Leopard too), even Apple has said that perms should be repaired while booted normally (i.e., from the
HD... unless it's an emergency): Scroll down and read the part under: "
Should I start up from a Mac OS X install disc to repair disk permissions?"
And -- AFAIK -- neither DiskWarrior, nor Cocktail, nor OnyX, nor AppleJack, nor any other permissions repair tool does anything special (i.e., different). They all call
/usr/sbin/diskutil repairPermissions / -- and that kicks off a whole series of internal processes involving characters such as...
/System/Library/PrivateFrameworks/Install.framework/Resources/
installdb/System/Library/PrivateFrameworks/DiskManagement.framework/Versions/A/Resources/
DiskManagementTool/usr/libexec/
repair_packages --output-format 1 --repair --standard-pkgs --volume /
...and probably others.
We don't need DiskWarrior to be repairing permissions. If there was some problem logging in, i'd rather use AppleJack from single-user mode. (needs to be installed ahead of time however).
-HI-