Re: [Xen-users] Install CentOS as Dom-U

[Daniel Lam <daniel@xxxxxxxxxxxxxxxx>]

On Tue, Jan 5, 2010 at 2:40 PM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:

On Tue, Jan 5, 2010 at 10:10 AM, Daniel Lam <daniel@xxxxxxxxxxxxxxxx> wrote:
> What I don't understand thou, is that if a kernel parameter is
> specified in the Domain Config File, does it mean the kernel
> inside domU will not be used? As the kernel param specifies
> a file in dom0.

Sort of.
The kernel line in domU config file specifies what "program" would be
loaded/executed initially in domU. This can be a PV kernel (like in
your debian example), hvmloader (in HVM domU), or a bootloader (like
pv-grub). Depending on what the kernel is, it might in turn use a
kernel inside domU (like in the case of hvmloader or pv-grub).

I see.. that makes more sense now.. thanks!

As a side note.. It would be nice if these sort of info can be updated

in wiki by everyone.

From my newbie experience so far, I found that the Xen user manual

gives me the best whole picture, however bits and pieces like what you 

provided are missing. E.g. with this kernel parameter, all the manual 

said are: "kernel   Set this to the path of the kernel you compiled 

for use with Xen". Maybe something the core team can think about.

It's really great that experienced users are so responsive to 

newbie questions like mine thou!

 

> Yes I found that convenient too. However Debian does not give
> an up-to-date Xen version, so I'm using CentOS instead.
> Does anyone know if CentOS have a xen-tools like util?

virt-install can be used to create Centos domUs.
There's also yum, which can function like debootstrap.

--
Fajar

Yes I just realised that too.. 

I previously thought virt-install can't create CentOS domUs

because centos is not in its os-variant list. Then I realised

that os-variant is only for full-virtualization.

I'm trying virt-install and/or "xm create" directly to create 

guest domains now. 

Daniel

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