Create a Dual boot inside Virtualbox

[daddor]

Hello,

I'm on Windows 7 main OS machine configuration.
For peronnal project, I would like to use virtualbox to manage, using a dual boot debian + Centos inside Virtualbox

I have made a debian install and after Centos, at the end it seems that both OS are available and bootable !
But I 'm not sure that the install is very clean ...
not sure that I have {/, /boot, /swap} for each OS

In my mind, is the way I use on windows, I have to create 2 partitions :
- one for windows
-another one for a guest OS

But during the install in Virtual I haven't seen such options

Do you have any idea of the process to follow ?

Thank's by advance for your answers

[scottgus1]

Whatever happens in the guest stays in the guest (in a sense). In other words, Virtualbox only provides "hardware" for the OS's to run on. VB does not know how you and you OS's partition the virtual drives VB presents. Think of how you would install things to dual-boot a real PC, and that's how you would dual-boot a VB guest.