DiskWarrior and Leopard PSA
From MacFixIt today…
Running DiskWarrior on startup volumes with Mac OS X 10.5 Leopard installed can have a problematic effect on permissions. The problem, according to Alsoft, is that DiskWarrior includes a repair permissions routine similar the one performed by Apple’s Disk Utility, but has not yet been updated to be compatible with the changed repair permissions routine used by Mac OS X 10.5. In other words, running the repair permissions routine in DiskWarrior while booted from the DiskWarrior disk (or booted from any other startup volume) is akin to running the version of Disk Utility included with Mac OS X 10.4 (Tiger) — a no-no if the target of the repair is a Mac OS X 10.5 volume.
And from the same article, Alsoft’s support site says…
You should not use any utility to repair permissions of a Leopard start up disk while started from Mac OS X 10.4.x or earlier. Permissions will either not be be repaired or will be repaired improperly. This is true whether you repair permissions with Apple’s Disk Utility, DiskWarrior, or any other third-party utility.
This makes total sense, but should still be noted for those who might think of trying it. Tiger and Leopard are as much two totally different cats as Panther and Tiger were. Don’t ever use one kitty to fix the other!
