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This should not be a duplicate, as I tried searching for this specific question and came up with nothing.

Is it possible to install multiple operating systems (like Windows 7, Linux) on the same machine, but without any one of them being the host operating system.

So, something like this:

   OS-Manager of some sort
       - Ubuntu
       - Feodra
       - Windows XP
       - Windows 7

Whereas currently, the only suggestions I can find follow this scheme:

   Host system (Windows 7, Linux)
            - Ubuntu
            - Fedora
            - Windows XP
            - Windows 7

The reason, for those who are interested, for this question, is that I would like to avoid the problem where host OS gets broken, and thus restricts access to all the other OSs.

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Search for "dual boot", it will lead you on several resource about that – Nettogrof Mar 29 '12 at 20:10
I am not sure if I "can dual" boot Windows XP, Windows 7, 8 and Linux all on the same machine... – drozzy Mar 29 '12 at 20:16
I am sure that you can. – Eroen Mar 29 '12 at 20:17
Search also for "bare metal" and "hypervisor". – Lord Peter Mar 29 '12 at 20:18
Oh I see, Type 1 Hypervisor looks like exactly what I need. – drozzy Mar 29 '12 at 20:19
up vote 5 down vote accepted

You will find that "OS-Manager of some sort" will either be a boot manager like syslinux, redboot or grub, which will let you pick one of the operating systems at boot; or a hypervisor like Xen or Hyper-V, which then proceeds to load a main operating systems (respectively some Unix and Windows) through which it then communicates with you and starts other operating system instances.

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