
Troubleshooting Chapter 3: Troubleshooting and Error Messages 50
Troubleshooting
Note: Be sure to read the document “DiskWarrior Read Me”. Last minute changes to the
documentation are detailed there.
❏ Problem: The disk I want to rebuild does not appear in the Disks Pop-up
menu.
DiskWarrior cannot rebuild a disk that is not HFS or HFS Plus (Mac OS Standard or Mac OS
Extended). The disk to be rebuilt must be locally connected, must not be write protected, and
must have a valid partition map.
❏ Problem: DiskWarrior tells me that the disk to be rebuilt is locked. The
“Replace” button is disabled.
The disk you have selected either is locked or is a media type such as a CD or DVD to which data
cannot be written. For a disk reported as locked, first check if there is a mechanical lock switch
on the disk and make sure it is set to the unlocked position. If the disk is still reported as locked,
open the software driver package that was used to initially set up the disk (for Apple disks, the
software is Disk Utility and can be found on Mac OS system CDs) and follow the instructions that
came with the software to unlock the disk.
❏ Problem: When I start up, a disk icon with a blinking question mark
appears.
This indicates that your computer cannot find the system software it needs to start up. If you
already have reblessed your System folder, there are some other possibilities.
Your Macintosh may be having a problem recognizing external SCSI, FireWire, or USB
peripherals such as hard disks, scanners, or removable media drives. Turn off your Macintosh
and all external devices and disconnect them from your computer. Restart your computer. If your
computer then starts up properly, refer to the documentation that came with these devices to
determine what is causing the problem.
There may be a problem with the system software installed on the disk you are attempting to use.
If, after rebuilding your disk directory with DiskWarrior and reblessing your System folder, this
problem continues to occur, you may need to reinstall your system software. Refer to the
documentation supplied with the version of the Mac OS you are using for directions on how to
reinstall system software.
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