I can only seem to boot my iMac (a Bondi Blue Rev A or Rev B) from an OS 9 or higher CD, but I can't install OS 9 because I have to update the ROM. To do that, I have to be able to boot and install OS 8.6, but I can't.
Also, when booting the keyboard works until the Desktop is loaded then the keyboard disappears.
Right now, the HD is empty - formatted and ready to go.
Also, I can't use the keyboard once in the Open Firmware. I've tried every trick and tip imaginable and I just can't get it to work!
If I have OS 8.6 loaded as a network share, can I run the 8.6 Installer (even if I booted from an OS 9 CD) from the Share and make this thing bootable?
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Sounds like you have a Windows exclusive CD. It will not work on Mac OS. If you have a windows install disk, you can install Windows on your Macbook Pro using Boot Camp via the Boot Camp Assistant located in Applications/Utilities. This will require you to restart and select one desired system to boot up in order to use OS X or Windows.
Alternatively you could run Windows and Mac OS simultaneously with a program such as parallels.
Are you sure the iMac is really shutting down or just turning off the backlight? The tell-tale sing would be to let the unit fully boot-up (wait 3 minutes) and the press the button the apple keyboard that ejects the CD-ROM. If the CD-ROM door opens, you iMac is running with disabled or broken backlight.
The inverter circuit on the iMac G4 is known to be weak.
There could be another problem, though. The iMac G4 is also known to have weak internal power supplies. Here's how you can tell:
Hold down the CMD OPT "O" and "F" keys at the same time while pressing the power button. This will tell the iMac that you want to boot into the Open Firmware shell, bypassing the Mac OS X startup. If this works, your power supply is good, the inverter is good and you have a problem with your Open Firmware boot string. To fix the boot string, Power on the unit while holding down the keys CMD-OPT-P-R to zap the parameter RAM (PRAM) and reset everything to defaults.
If you were not able to boot into the Open Firmware shell, your problem is either a failed power supply or a failed screen backlight.
The last possible culprit is your iMac could suffer from "Bulging Capacitor Syndrome", where a batch of iMac G4s, iMac G5s another electronics were fitted with a bad batch of capacitors. Eventually, the caps will rupture and cause irreparable damage to the logic board. Only way to verify this is to pull the unit apart and visually inspect. If you see little green or blue cylinders that seem to be bulging or oozing a thick oily goo, that's your problem. Only recourse is to shop around on eBay and look for a replacement logic board.
Sounds like a kernel panic code. You may be missing a piece of the OS code due to a Hard Drive error from a power issue or whatever. You may need to reinstall your OS. Start up from the cd and save all your data you can to a flash drive or external hard drive and then do a clean install.
Time to completely erase the hard drive.Start up from your install CD with latest version that will run on this Blue and White.. Don't expect to save any existing files. Just do a complete erase and reinstall via disk utilitly and then your os disc... let me know how it goes..