Re: Question about paravirtualisation support and about linux-virtual

On Mon, 2010-10-18 at 14:40 +0100, Liam Proven wrote:
On 18 October 2010 14:23, Ioannis Vranos <cppdeveloper@xxxxxxxxxxxxx> wrote:
Hi all,

I have 2 questions.

1. Does anyone know if there is VMware paravirtualisation support in
recent Ubuntu releases?


2. Also in Synaptic, there are available linux images in the style:

linux-image-2.6.32-23-virtual

with the description:


Linux kernel image for version 2.6.32 on x86/x86_64

This package contains the Linux kernel image for version 2.6.32 on
x86/x86_64.

Also includes the corresponding System.map file, the modules built by
the
packager, and scripts that try to ensure that the system is not left in
an
unbootable state after an update.

Supports Virtual processors.

Geared toward virtual machine guests.

You likely do not want to install this package directly. Instead,
install
the linux-virtual meta-package, which will ensure that upgrades work
correctly, and that supporting packages are also installed.

Canonical provides critical updates for linux-image-2.6.32-23-virtual
until October 2011.




and the metapackage linux-virtual has the following description:


Complete Linux kernel for virtual machines

This package will always depend on the latest complete Linux kernel
available
for virtual machines.


Are these about paravirtualisation support, and does this support
include VMware?

Paravirtualisation is a method of running an OS for a non
Popek-and-Golderberg instruction set under a hypervisor. It modifies
the guest OS so that it does not use any privileged instructions
needed by the host OS.

In practice, this means that these are kernels for Xen VMs running on
host hardware that does not support Intel or AMD hardware
virtualisation.

It's nothing to do with VMware at all.


Thank you for your answer, however why Xen isn't mentioned then? There
is not Xen virtualisation only.

There are KMS, VirtualBox, VMware, and others too.

How do you know it is only for Xen?



--
Ioannis Vranos

http://www.cpp-software.net




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