These are the steps I need to perform in order to get to the desktop to install Lubuntu 12.04 Remix onto an 867Mhz, 1 Gb RAM, Nvidia Geforce4 MX , PowerPC G4:
Holding down the option key I select the CD
Yaboot appears and I enter the following:
live-powerpc video=offb
ff nouveau.modeset=0 single
The screen goes to an Open Firmware screen and freezes (this is expected)
You must wait until the system has finished booting/loading whatever ~ 10 minutes
You won't see the following appear on the screen when you enter it:
modprobe nvidiafb
If you waited long enough, the screen will flicker and a root terminal will appear, I enter the following at the command line:
$ modprobe nvidiafb mode_option=1280x1024-16
Another entry line appears and I enter
$ start lightdm
The desktop loads and the install can commence. The graphics are not the best but useable for installing the software.
I DONOT install upgrades or third party software during the install per instructions provided with the distro
During this particular install I get the following "critical" error (paraphrasing)
CRITICAL ERROR: Ubiquity unable to create '/root/.cache/dconf, dconf will not work properly
The install continues until this
Error migrating documents and settings, the installation will continue some documents and setting were not transferred to the installed system.
I hit OK
Installation completes and I hit RESTART NOW
A screen appears and asks for the install media to be removed and then hit ENTER, the CD popped out, I hit enter and nothing happens other then some hieroglyphics appear when I hit ENTER (a square, an insert sign and a backslash)
No other key entries work to get the system to restart. So I use the power button to shut the unit down.
Iaboot doesn't startup, so I hold down the Option key to get thestartup disk screen and the Linux HD does not appear. Launching into Mac OSX Tiger, I can see that the hard drive has been partitioned by the installer CD but I'm pretty sure the installation was not completed properly.
So there you have it. More troubleshooting underway.
MacMav