Sorry for such a basic question but I have to be sure. I will replace my hard drive with new hard drive. Currently I have dual boot (Windows 8.1 and Ubuntu), which boots with GRUB2. Is boot loader only on hard drive? Considering this article it is: http://www.howtogeek.com/187789/dual-booting-explained-how-you-can-have-multiple-operating-systems-on-your-computer/
"Your computer’s operating system is generally installed on its internal hard drive. When you boot your computer, the BIOS loads the boot loader from the hard drive and the boot loader boots the installed operating system."
When hard drive is replaced, new OS can be normally installed? Or do I have to configure some additional stuff before replacing the hard drive?