Originally Posted by pljvaldez
Can you post your /etc/apt/sources.list file?
But generally you'll do something like gksudo gedit /etc/apt/sources.list and then edit the list how you want. You'll want to put a "#" symbol in front of the old lines that don't support PPC to comment them out.
here is the file:
# deb cdrom:[Ubuntu 8.10 _Intrepid Ibex_ - Release powerpc+ps3 (20081030)]/ intrepid main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/