[ubuntu] Boot loader installation failed on Mac Mini 1,1

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http://ubuntuforums.org – Hello, I have a Mac Mini 1,1. I am trying to install Ubuntu on an external HD, an old Western Digital 80GB I had laying around. The installation went well, except that it failed when trying to install the boot loader. I have yet to install rEFIt on my Mac, but I did try booting with a rEFIt CD - as I expected, the drive wasn't detected. I followed the advice at https://help.ubuntu.com/community/Boot-Repair to scan the system. Here's the results: http://paste.ubuntu.com/1275822/ I have yet to try clicking recommended repair. I'm a bit leery of doing so without knowing exactly what it'd b (Hardware)