Alsoft: There are some DiskWarrior "compatibility issues" with Leopard

After previously stating "you can run the (current version of DiskWarrior under Leopard) knowing no harm will come to the hard drive or to your data," Alsoft has now posted a message to its Web site stating "there are some compatibility issues when running an installed copy of DiskWarrior 4.0 while started up from Mac OS X 10.5 Leopard. Alsoft currently recommends that you do not run DiskWarrior 4.0 while the computer is started from Mac OS X 10.5 Leopard."

Instead, the company recommends, you should run DiskWarrior from its own CD or "any disk that starts up in 10.4.x"

Alsoft adds:

"DiskWarrior 4.0 will successfully rebuild a disk that has Mac OS X 10.5 Leopard installed or a disk that has been attached to a computer running Leopard. However, some operating system functionality has changed within Leopard itself. [...]

"An updated version of DiskWarrior that has complete Leopard compatibility will be released soon as a free download for existing owners of DiskWarrior 4.0."

UPDATE: The specific "compatibility issues" identified by Alsoft (when running DiskWarrior while booted in Leopard):

• There is a lengthy delay whenever DiskWarrior is determining which drives are currently attached. This delay is dependent upon the number of attached drives and may last up to 2 or 3 minutes. You will experience this delay when first starting DiskWarrior, whenever a disk is attached or detached while DiskWarrior is running but idle, and whenever a rebuild is completed or canceled.
• You cannot rebuild FileVaults or disk images.
• In step 9 (comparing directories) of a rebuild, the progress bar might get to 100% even though the comparison step is not finished.
• When performing Check All Files and Folders the progress bar might get to 100% even though the check is not finished.
• After rebuilding a disk, DiskWarrior may report that some files or folders have had their permissions changed. This is inaccurate and the permissions have not been changed.

Feedback? Late-breakers@macfixit.com.

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