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Crash course: Virtualization with KVM on Ubuntu Server

Oct 28, 2011, 10:03 (0 Talkback[s])
(Other stories by Carla Schroder)


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"KVM, which stands for "kernel-based virtual machine", was first developed by Qumranet. Red Hat bought Qumranet in 2008 and made KVM the core of Red Hat Enterprise Virtualization for Servers. KVM is licensed under the GPL and is part of the mainline kernel, so any Linux distribution can support it. KVM is a Type 2 hypervisor, which means it runs inside an operating system. Some popular Type 2 hypervisors are Xen and VirtualBox. Type 1 hypervisors, such as IBM's z/VM and VMWare ESXi, run on the bare metal and don't need operating systems. KVM supports pretty much any guest operating systems: Linux, Mac OS X, Unix, Windows, and whatever else you have lying around.

"Ubuntu Server, like KVM, is growing into an enterprise powerhouse. Ubuntu supports KVM on x86 and x86_64. Unlike Red Hat and Novell, the big two enterprise Linux vendors, you can download and test Ubuntu without having to register or wade through sales pitches. If you want training, commercial support, or online services like the Landscape systems manager or Ubuntu cloud services, they're there when you want them."

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