Regarding your last port, I found this on the thread you indicated, would that explain the folder? The Apple logo won't be displayed. "The only difference you will note, is that you will not see the apple logo on startup anymore but a folder with a question mark instead."
I found this recent post: Re: Want to Install Stand alone Ubuntu system on Mac Mini "Guys, I am happy to announce that I have now got stand alone Ubuntu system on my mac mini with complete blue tooth and wifi support out of the box. The procedure is simply easy. You have to use the entire hard drive wiping out all the mac os components using the guided way of the Ubuntu partitioner. The boot delay is not too much for me. It may be about 5 to 8 seconds only which is tolerable. Well thanks for ur advices." On this thread: http://ubuntuforums.org/showthread.php?t=1022860&highlight=installing+mac+mini If you still think there is a bug in grub, please provide detailed information on what happens during the boot sequence. BugSquad ** Changed in: grub (Ubuntu) Status: New => Incomplete -- grub fails to load on macintel mini https://bugs.launchpad.net/bugs/89777 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs