I'm quite new to using Ubuntu. I have a dual-booted computer, running Windows 7 & Ubuntu 12.10. I'm planning to get an upgrade to 13.04. In terminal, I know the command is "do-release-upgrade". But, when I install it, will it leave my other systems alone? I'm expecting it will just add the option to boot into Ubuntu 13.04 when I turn on my computer? So I would have the options: Windows 7, Ubuntu 12.10 & Ubuntu 13.04
Correct? All in my GRUB menu. Help is greatly appreciated, I just really want to make sure nothing will be harmed. Thanks in advance.