I am having Ubuntu 12.04 minimal installed on my USB pen-drive; which I use on several systems as portable OS.
I was thinking to
edit the boot parameters so that before the main Ubuntu OS is loaded, it shows an option to
Boot from Hard Drive for 5 seconds, and then boots to Ubuntu.
This way i'll be able to have an option to boot to the OS installed on the Hard-Drive, without removing or unplugging my ubuntu USB stick.
How do I edit the boot parameters to achieve this?