Hello Everyone
After a week of trying I've finally booted my 1 Ghz 17" FP G4 into MacOS 9.
Firstly the Unsupported G4s 9.2 ISO would not boot on this computer (It would show up when option key booted, but flash with ? disk)
Secondly tried restoring the Unsupported G4s 9.2 ISO - Macos9lives.img to a separate partition on internal hdd (It would show up also when option key booted, but also flash with ? disk)
This is what finally booted.
1.
Changed nvram of computer using script from iMic and bleak originally i think
(
https://www.thinkclassic.org/viewtopic.php?id=46&p=7)
-------------------------------
#!/bin/sh
echo Enabling OS 9 booting...
echo "You may have to enter your password"
# Use nvram command to setup nvramrc with script to make open firmware changes
sudo nvram nvramrc='" /" select-dev
" PowerBook4,3" encode-string " model" property
" PowerBook4,3" encode-string " MacRISC" encode-string encode+ " MacRISC2" encode-string encode+ " MacRISC3" encode-string encode+ " Power Macintosh" encode-string encode+ " compatible" property
00000000 " graphic-options" get-my-property 2drop !
unselect
" /cpus/PowerPC,G4@0" find-package if drop " /cpus/PowerPC,G4@0" find-device 80010201 encode-int " cpu-version" property then
device-end \ PLX-OS9-PATCH
'
# Enable use of nvramrc on boot. Change to "false" if you want to disable again. Or just clear/reset nvram.
sudo nvram "use-nvramrc?"=true
echo done.
----------------------
2.
Run this script then could format and partition hdd into 2 and install OS 9 disk drivers with Tiger installation disk. (This wasn't available before changing nvram!)
3.
Back in Tiger, restored the unsupported G4s macos9lives.img to the second partition which was created (That also had the OS 9 disk drivers installed)
4.
Restarted computer (option key) clicked onto OS9 partition (Again didn't boot, ? disk flashing)
5.
Rebooted Tiger, launched a "classic" application which initialised the "Classic" environment.
6.
Went to StartUp Disk in the Tiger System Preferences and was able to select OS 9 (This had not been an option before changing the nvram settings)
7.
Computer rebooted and to my surprise finally booted OS 9!!!
8.
It crashed booting up the first time, so I restarted the computer this time when OS 9 was booting holding down left shift to turn of extensions. It booted to a functioning state.
9. Restarted again, this time it booted successfully normally with all extensions.
I know this post is long winded however I'm trying to prevent someone giving up on booting OS9 (Like i nearly did!)
So far on this setup, looks like just 256 colors at 1440 x 900, no sound from internal speakers (Sound from headphone jack working)
