Comment 8 for bug 1018419

I don't have access to the machine for a couple of days so I can't test it again right now, but yes, I did that three times. I would enter the console, type the command, fail, exit the console, re-enter the console, type command again, and it would work. I wonder if it was loading the bootloader on the second disk when I exited the console? All of the grub menu entries were the same.