Apple 145B manual Using Disk First Aid

mIf the hard disk is external, make sure it is turned on and its cable is connected firmly; then restart the Macintosh.

mCheck the ID numbers of all SCSI equipment connected to your computer. Each device must have a unique ID number (the computer itself has the ID number 7, and the internal hard disk has the number 0). Also check that the chain of devices is terminated properly. (See the chapter on enhancing your computer system for information about setting SCSI ID numbers and checking termination.)

Using Disk First Aid

You can use the Disk First Aid program to test floppy disks and hard disks that may have been damaged. Disk First Aid also repairs some types of disk damage. Disk First Aid is on the Disk Tools disk that came with your computer.

1.Insert Disk Tools and start up your computer.

2.Open the Disk First Aid icon.

128 Chapter 8: Using Disks