(This only applies to Jaguar disc one. Disc two does NOT check for a previously installed OS.)
1. Insert the Mac OS 10.2 Update CD (disc one)
2. Open Disk Copy (found in the Utilities folder)
3. Select "File - Image - New Image from Device"
4. Select your CD-ROM drive from the dialog
5. Image as "DVD/CD Master"
Now modify the contents:
1. Control-click on the resulting disc image
2. Make certain that the disc image is mounted
3. Navigate with the Finder to "System - Installation - Package Contents"
4. Select the "Essentials.pkg" file
5. Control-click on the "Essentials.pkg" file and select "Show Package Contents"
6. In the pop-up Finder window, navigate to "Contents - Resources"
7. Here is where we find the culprit! Drag the file titled "Check for OSX" to the Trash; close all finder windows.
To burn your fully functional Jaguar disc:
1. Return to Disk Copy and select "File - Image - New Image from Device"
2. Select the mounted volume you opened above and create another "DVD/CD Master" image
3. Now select "Image - Burn Image"
4. Select the newly modified .dmg file
5. Burn to CD ... that's it!