Apple twentieth anniversary mac 서비스 매뉴얼
Testing your hard disk
If you see a message reporting that a disk is damaged or unreadable, you may need to repair the disk.
Try these suggestions first
If you can’t start up from a hard disk or you don’t see the hard disk icon on the desktop, try the
following:
following:
m If the hard disk is internal, shut down your Macintosh, wait at least 10 seconds, and then turn it on
again.
m If the hard disk is external, make sure that it is turned on and that its cable is connected firmly; then
restart the Macintosh.
m If the hard disk is your startup disk, start up with a different startup disk. (See “Starting Up From the
System Software CD-ROM Disc,” later in this chapter.)
If, after you start up from a different disk, your hard disk’s icon appears on your desktop, reinstall
system software on the hard disk. See “Installing System Software,” later in this chapter.
system software on the hard disk. See “Installing System Software,” later in this chapter.
m Check the ID numbers of all SCSI equipment (anything connected to the SCSI port [g]) on your
computer. For information on setting SCSI ID numbers and terminating a SCSI chain, see both the
manuals that came with your SCSI equipment and Chapter 9, “Connecting Additional Equipment.”
manuals that came with your SCSI equipment and Chapter 9, “Connecting Additional Equipment.”
m If none of these suggestions solves the problem, test the disk by following the instructions in
“Testing for Damage on Your Hard Disk,” next.
Techniques
for Diagnosing
and Solving
Problems
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