Author Topic: eMac G4 1.25 MacOS 9  (Read 1043 times)

Offline GMac2

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eMac G4 1.25 MacOS 9
« on: August 20, 2023, 12:44:46 PM »
I am trying to run MacOS9 on my eMac 1.25 (PowerMac6,4) and when I use the modified OS9 disk, it will sit at a grey screen and wont do anything else. My eMac's PRAM battery is dead, and I have a replacement coming. I have tried a PRAM reset, and that did nothing. Any ideas? Also, does anyone know if there is a way to install the MacOS9 Disk Drivers without formatting the hard drive?

Offline DieHard

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Re: eMac G4 1.25 MacOS 9
« Reply #1 on: August 20, 2023, 12:55:27 PM »
You will see that patience will reward you grasshopper, just search a little...

http://macos9lives.com/smforum/index.php/topic,4361

Quote
If you're having issues with hardlocking before the end, you need to delete the /System Folder/Extensions/Multiprocessing folder.

Here's my personal most painless method of installing OS 9 on this machine; no Open Firmware fiddling required. (unless my guide doesn't work)
Please tell me if this doesn't work for you, and how, so I can update this post. (for context this was done for a X 10.3 and OS 9 dual boot setup.)

0. Have an extra partition on your drive for 9.
1. Burn the Unsupported G4s CD.
2. Boot up X and download the two links at the top of the first post in this thread. (tbxi-enabler and ATI,Merlin)
3. Restore the .img file from the Unsupported G4s CD to your partition with Disk Utility.
4. Delete /System Folder/Mac OS ROM.
5. Copy tbxi-enabler into /System Folder.
6. Copy the contents of ATI,Merlin into /System Folder/Extensions, overwriting the existing files. (that's the point)
Mac OS 9 will not boot yet. Open Firmware will be able to boot to the new Mac OS ROM, but will not detect your hard drive, just showing a blinking ? floppy.
7. Make sure the Unsupported G4s CD is still inserted. Reboot and hold Option to go into the boot menu, and boot to the (probably unlabelled) hard drive w/ Finder icon. (Your OS 9 partition.)
After about 1 or 2 minutes, Mac OS ROM will give up on booting to your drive and boot to the Unsupported G4s disc. (this saves a step in Open Firmware, and if you type at my slightly above average speed that's still faster.)
8. Close the Read Me and select your main drive (should be ATA, not ATAPI... probably the second one in the list), do NOT Initialize it.
9. Click the "Functions" drop down menu on the menu bar and click "Update Drivers".
10. Allow your machine to boot into X as normal.
11. Go to the Startup Disk settings under System Preferences, select "Mac OS 9.2.2 on (your OS 9 partition)", and restart. Your machine should now directly boot into OS 9.

Offline GMac2

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Re: eMac G4 1.25 MacOS 9
« Reply #2 on: August 20, 2023, 01:47:31 PM »
Thanks for the help :) I am currently trying this. I will let you know if this works. And I will spend a longer time looking for help ;)

Offline GMac2

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Re: eMac G4 1.25 MacOS 9
« Reply #3 on: August 20, 2023, 02:03:08 PM »
Well, it is half working. I am not sure what to do. It booted into the MacOS9 partition fine! But, it wont let me select "Update Drivers". I need my OSX to still work so I made a image of it using firewire on another mac. Do you know if the image would be bootable, so I could restore it using my other mac via firewire. Sorry to ask a lot, I am very new to classic macs. Also another problem is the resolution in OS9 is stuck at 800X600, so its not the whole screen. I'm not picky though. Thanks for all of your help. :)

Offline GMac2

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Re: eMac G4 1.25 MacOS 9
« Reply #4 on: August 21, 2023, 07:36:54 AM »
Well, I took my chances, and Macos 9 boots and works fine! Thanks so much. Im working on restoring my MacOSX Backup, Im not sure if it will work though.