mcmacker4; Sorry to have left you high and dry, Things came up I had to attend to.

I admitt I am totally mistified as to what is happening, A cron job should not even be running at this point in the installation (same situation as firefox starting prior to this install attempt)

I am not familar with macs, so I may be out in left field with this: A bios setting for something like "secure Boot" (??) preventing installation of another operating system ?

Let's see what the drives look like;
boot up ubuntu's install disk -> try ubuntu and post the output of terminal code :
 sudo fdisk -l
and maybe get some idea of what we are working with.

not much help, but try'n