I thought that if Mt. Lion was on SuperDuper that meant it was also on my hard drive since that's how I got it onto my external drive in the first place just like Mavericks.
I'll guess that you first cloned Mt. Lion to a partition on your external, then you installed Mavericks,
which overwrote Mt. Lion on your internal, i.e. your Mt. Lion volume morphed into your Mavericks volume, and finally, you cloned Mavericks to another partition on your external, which could explain, but isn't necessarily why you've got Mt. Lion and Mavericks on your external, but only Mavericks on your internal.
OK, thanks. I can't see all those shots of the D/U very well but I will get something that I can see to do this. (I sure don't like how they've change it. It used to be simpler.) I will keep this info until I buy my new Mac because I could screw it up and end up with another brick!!
I guess I must have done all you said because you're right, I can't find Mt. Lion on my HD, just my external drive. So complicated. I thought I had Mt. Lion on my HD and cloned it to SD and partitioned my HD so I could go back to it if I didn't like Mavericks which is also on my HD. OH well. Plus, just now I went to spotlight and pulled up D/U. Three things showed up: Mavericks which worked, Machintosh HD which worked (meaning I could go to d/u when clicking on it) and Mountain Lion which, when I clicked on it brought up this error message: "You can't use this version of the app D/U with this version of OS. You have d/u app 13." What? Mavericks and Mt. Lion DO show up in S/D. I see them right on my desktop as I am typing.
As I said earlier, every volume on every drive shows up in SD!'s pane, so if it ain't there, you ain't got it.
OK,
here is a visual 1, 2, 3.
The shot of Disk Utility is to make sure you understand to erase not the top item, but the one immediately beneath it on your internal drive. (I guess it will be named "Mavericks", but it may be "Macintosh Hard Drive", "Untitled"...whatever.) Note that the "Erase" pane gives you the option to change the volume's name, so if you like, you can change it to something uniquely recognizable for the moment; you can always rename it later.
The top SD! shot shows your sources, and as you can see, each one's location is identified by its icon...Mac HD for internal volumes and USB for externals in my instance...maybe FireWire in yours.
Select "Mavericks" on your external as your source.
The middle shot shows your destinations, with their locations also identifiable by their icons.
Select "Edgar" (the volume you just renamed) on your internal as your destination.
The bottom shot shows something similar to what you should see (unless you external is FireWire, in which case you'll see a FW icon on the left).
Click on "Copy Now".
After SD! has done its thing, navigate to System Prefs > Startup Disk and select "Edgar".
Shut down your MBP.
Disconnect your external.
Start up your MBP.
If all went according to plan, your MBP should start up in Mavericks.
