4) It hangs while in the process of mounting. The dialog that displays the progress mounting the drive pops up, and it hangs at 0%.
I have not encountered this kind of 0% progress error message during a mount command before. It looks more like a copy operation hanging at 0%.
May I suggest that you try to mount hda1on the command line instead, and see what sort of error messages you get. Open up a root shell and explicitly mount hda1 read-only with:
Code:
mount /dev/hda1 /media/hda1 -o ro
If this works, you should get back to the command prompt. If not you should get a useful error message. If it works, then mount your IOMEGA disk, which should be sda1 or something like that. Remember to mount it as read-write. You can check what has been mount by simply issuing the command
Code:
mount
If you successfully mount both the source and the destination drives, then try copying a few files at a time instead of dragging a whole folder across.