Author Topic: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)  (Read 1944 times)

Offline MacTron

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Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« on: April 10, 2018, 08:15:22 AM »
The eMac 1.25 and 1.42 can't officially boot into Mac Os 9. Unless an unofficial custom ROM is used:
http://macos9lives.com/smforum/index.php?action=dlattach;topic=2408.0;attach=5090
Furthermore, to allow full video support and video acceleration we need a mod video drivers:
http://macos9lives.com/smforum/index.php?action=dlattach;topic=4322.0;attach=5025

This was only tested in the 1.25 model but probably all of this works in to the 1.42 one too. Except video acceleration. The eMac 1.25 video is based on a Radeon 9200, but 1.42 is based on a Radeon 9600 wich havent Mac Os 9 support at this moment.



Everything works OK, but Apple DVD player and System deep sleep.

The display and system sleeps works, but when the System (the CPU) goes to sleep the computer can't wake up. To avoid this, the upper bar in Energy Saver should set to never:



But when you select "Sleep" from the Special menu, the issue persist, the CPU is forced to sleep and the computer can't wake up.
If we replace the Energy Saver control panel by Sleeper, this issue disappear:



Another issue is the startup freezing mouse, It occurs on 1/10 startups, the only solution know by now is to restart the eMac pressing the On/Off button.

The eMac 1.25 performs surprisingly well compared to a single 1.25 MDD:




« Last Edit: April 11, 2018, 10:10:05 AM by DieHard »
Please don't PM about things that are not private.

Offline widdly

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #1 on: May 13, 2018, 04:49:47 PM »
nvm
« Last Edit: May 13, 2018, 05:00:12 PM by widdly »

Offline matthewcabor252

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #2 on: August 06, 2018, 05:58:49 PM »
How do I install the ROM?

Offline Daniel

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #3 on: August 06, 2018, 07:13:29 PM »
Stick it in the system folder you want to use. It replaces the Mac OS ROM file already there.

Offline matthewcabor252

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #4 on: August 07, 2018, 04:42:04 PM »
Ok, I put it into the "System Folder" but its not showing up when I  hold option at power up. I put "tbxi-enabler" in the Mac OS 9 System Folder. I have 1 partition with Mac OS Tiger installed.

-eMac USB 2.0 1.25GHz 1.5GB DDR SDRAM
« Last Edit: August 07, 2018, 07:16:54 PM by matthewcabor252 »

Offline Daniel

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #5 on: August 08, 2018, 08:33:59 AM »
Does the system folder have the special icon indicating that it's a system folder? It's possible that it isn't "blessed" properly. Reblessing it could be as simple following these directions, or it could be a nightmare to do.
  • Select the "System", "Finder", and "tbxi-enabler" files
  • Drag them to the hard disk icon of the partition the system folder is in.
  • Drag them to the system folder. If its icon changes, success!

By "1 partition with Mac OS Tiger", do you mean that you have Mac OS 9 on one partition and Tiger on the other? If you have that configuration, it should work. If you are trying to do this with only one partition, you are going to have a lot of trouble because OSX doesn't let you set the startup disk to a Mac OS 9 system folder if the machine isn't "supposed" to handle 9.

Offline macarone

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #6 on: August 08, 2018, 01:30:28 PM »
If you are able to boot the computer into OS X, running DiscWarrior on the partition containing OS 9 will "bless" the OS 9 System Folder, even when other methods failed.

I have never been able to figure out what makes a partition show up in Startup Manager (booting with Option held down).... Some show up and some do not, even when they DO show up in System Preferences/Startup Disk.

And, some partitions show up in Startup Manager but NOT Startup Disk.

I'd be grateful if someone explained it all.

Offline Astroman

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #7 on: August 08, 2018, 03:35:34 PM »
can't explain it in depth, but aside from disk partitioning/driver it's the content (!) of the MacRom which is checked during boot. If the requested resources are missing, the whole disk will be excluded from the list of bootable drives.

Offline darthnVader

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #8 on: August 11, 2018, 09:14:20 AM »
Does the system folder have the special icon indicating that it's a system folder? It's possible that it isn't "blessed" properly. Reblessing it could be as simple following these directions, or it could be a nightmare to do.
  • Select the "System", "Finder", and "tbxi-enabler" files
  • Drag them to the hard disk icon of the partition the system folder is in.
  • Drag them to the system folder. If its icon changes, success!

By "1 partition with Mac OS Tiger", do you mean that you have Mac OS 9 on one partition and Tiger on the other? If you have that configuration, it should work. If you are trying to do this with only one partition, you are going to have a lot of trouble because OSX doesn't let you set the startup disk to a Mac OS 9 system folder if the machine isn't "supposed" to handle 9.

Code: [Select]
sudo bless --folder /path/to/the/OS9/System Folder
?????????????????

Offline Daniel

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #9 on: August 11, 2018, 09:24:28 AM »
Does the system folder have the special icon indicating that it's a system folder? It's possible that it isn't "blessed" properly. Reblessing it could be as simple following these directions, or it could be a nightmare to do.
  • Select the "System", "Finder", and "tbxi-enabler" files
  • Drag them to the hard disk icon of the partition the system folder is in.
  • Drag them to the system folder. If its icon changes, success!

By "1 partition with Mac OS Tiger", do you mean that you have Mac OS 9 on one partition and Tiger on the other? If you have that configuration, it should work. If you are trying to do this with only one partition, you are going to have a lot of trouble because OSX doesn't let you set the startup disk to a Mac OS 9 system folder if the machine isn't "supposed" to handle 9.

Code: [Select]
sudo bless --folder /path/to/the/OS9/System Folder
?????????????????
That works too. I just have never done this stuff from OSX.

Offline torvan

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #10 on: September 22, 2018, 05:14:01 PM »
Well, despite hours of trying, four CDRs, and even attempting just "Drag and Drop", in no way can I get OS9 to boot at all. I even tried the "boot an OS9 machine and use Firewire Disk mode" trick. Yes, I used the drivers and the tbxi-enabler. Terminal blessed the drive too. But noting appears in an Option boot and neither in Tiger's Startup Disk preferences.

Perhaps it is because mine is the 1.42Ghz 7447a with the Radeon 9600 (which has no OS9 drivers).

Sigh.

Offline Protools5LEGuy

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #11 on: September 22, 2018, 05:50:02 PM »
Torvan. That eMac is better with leopard (Full Core Image) than with 9....
Looking for MacOS 9.2.4

Offline eMacg4125

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #12 on: September 23, 2018, 03:29:29 PM »
Hi all,

First up, I'm a newb to all things Mac ... I rescued an eMac and wanted to have a play with MacOS, had a muck about with OSX so now want to try 9

I've downloaded the specially created 9.2.2 ISO for the eMac but cannot get it to boot?  I've even completed formatted the HDD to MacOS format (not journalled), after clicking on the disc from the boot > option key menu the screen goes grey and nothing happens after that

Completely assuming I've missed something?

Cheers

Offline KiritoSwordArtONLINEfan

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #13 on: October 03, 2018, 11:30:53 AM »
this works great now! one question though, is there a way to get the machine to boot into OS 9 by default? I always have to hold down the option key and wait to select OS 9 which is kind of annoying. even when I go into the startup disk settings, choose OS 9 and click restart it just goes into OS X...

Offline torvan

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #14 on: October 03, 2018, 05:18:01 PM »
Torvan. That eMac is better with leopard (Full Core Image) than with 9....

Granted it is, but I still wanted to give this a try given it might have worked. Too much fun to tinker around with and it is not something mission critical or anything.

Offline superlions16

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Re: Mac OS 9 booting on: eMac G4 1.25 Ghz. (Detailed Posts)
« Reply #15 on: October 31, 2018, 02:59:31 PM »
The eMac 1.25 and 1.42 can't officially boot into Mac Os 9. Unless an unofficial custom ROM is used:
http://macos9lives.com/smforum/index.php?action=dlattach;topic=2408.0;attach=5090
Furthermore, to allow full video support and video acceleration we need a mod video drivers:
http://macos9lives.com/smforum/index.php?action=dlattach;topic=4322.0;attach=5025

This was only tested in the 1.25 model but probably all of this works in to the 1.42 one too. Except video acceleration. The eMac 1.25 video is based on a Radeon 9200, but 1.42 is based on a Radeon 9600 wich havent Mac Os 9 support at this moment.



Everything works OK, but Apple DVD player and System deep sleep.

The display and system sleeps works, but when the System (the CPU) goes to sleep the computer can't wake up. To avoid this, the upper bar in Energy Saver should set to never:



But when you select "Sleep" from the Special menu, the issue persist, the CPU is forced to sleep and the computer can't wake up.
If we replace the Energy Saver control panel by Sleeper, this issue disappear:



Another issue is the startup freezing mouse, It occurs on 1/10 startups, the only solution know by now is to restart the eMac pressing the On/Off button.

The eMac 1.25 performs surprisingly well compared to a single 1.25 MDD:



Okay, how did you even install this? and how in the world are you supposed to get the Mac OS ROM replaced without having to use the bless command??  :-\