Symptom
Larger installations using the Mac OS X 10.2 Install disc 2 do not complete if the computer is left idle.
Solution
Temporarily turn off the sleep feature, or move the cursor every few minutes to prevent the computer from going to sleep.
If you are installing on a portable computer, you should make sure that the power adapter is connected to a working electrical outlet.
Note: Most recent Macintosh computers should not be affected by this issue. The probability of this issue depends in part upon on how much software is installed from the CD, as well as the speed of the computer and the optical drive.