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Virtual only machine?

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Hi dudes and dudettes,

I was asked a question yesterday about Type 1 Virtual Machine software.  Basically the user wants to have a computer with no OS running but boot up and be able to choose from a list of virtual machines to run.  From my infinite knowledge (Wikipedia) I think this is a type 1 hypervisor or Kernel-based Virtual Machine (KVM).

I have a fair bit of experience with VMs using VirtualBox on my desktop to test new distros etc...

Does anyone here have any insight or advice on a Virtual only machine as explained above?  I read about Xen and I will have a play around with it myself but any help would be appreciated.

Cheers in advance!

I believe KVM is what they're looking for, although really the man to ask is Mad Penguin IMO. That guy has more virtual machines than hot dinners. :P

Mark Greaves (PCNetSpec):
As I understand it, he HAS to have an OS, or how would xen/kvm run ? .. just that they can sidestep the host OS and access the hardware directly .. kind of.

I'll see if I can draw MP's attention to this topic ;) .. as BkS suggests, he's "the man" for this kinda stuff :)

Or do you mean something like a WUBI install seems to do .. which is really just dual booting, but using a "virtual drive" ?

I think it'll be OK if there is a host OS with Virtual Machines on top but if that's the case is is possible to boot directly into one of the VMs without logging into the host system.

For example a computer with a Linux host OS.  On boot up you can choose either to access the host or boot a VM, say Windows, from a menu.  Almost like a dual boot setup but with Virtual Machines.

I'm not sure why the guy wants to do this but I like learning as well so it would be interesting to find out.

Mark Greaves (PCNetSpec):
I've drawn MP's attention to this topic ..

I'd assume the answer is yes, but the "host" (probably the wrong word) os must be running .. sounds to me like VM isn't what he's after .. unless I'm mistaken.

Sounds more like he want, multiple boot (maybe without separate partitions), with virtual drives .. like WUBI does it.

But lets wait see what MP has to say


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