G5 Install Help Needed

[Thomas Ferreira]

Hi, downloaded and installed Hoary Array 3 Ubuntu linux on my G5s 2nd 
hard drive.  1st drive has OS X and the 2nd drive I installed Ubuntu on 
using the install-power4 selection.  Install appears to have went fine 
but when the installer spits out the install CD and states the system 
will reboot and I will have more questions to answer for proper setup 
of the system, my G5 boots to OS X again.  So, I held down the option 
key at boot and selected the new hard drive icon that was present that 
has the penguin on it.  I then get the text screen asking what I want 
to boot.  I am guess this is yaboot?  Anyway, I hit the letter "L" on 
my keyboard, the drive icons on the screen kinda get dull in color, the 
time clock spins for about 2 minutes, then I stay on that exact OPTION 
screen where it shows my OS X and new Linux drives.  So, endless loop 
and the only way to boot anything is to select the OS X drive so it 
boots OS X.

My system is a G5, dual 2GHz, 1GB memory, 2 drives (the stock 160GB 
running OS X) and the new Western Digital 120GB drive.  So, how do I 
get past this endless loop and boot into Linux?

I wonder if I need to disconnect the cables from my main OS X drive to 
see if it boots that way but I need to be able to boot to both systems.

Any help would be great!

Thomas