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Re: [Xen-users] using virt-install program

To: Xen User-List <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] using virt-install program
From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Date: Tue, 12 May 2009 08:45:53 +0700
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On Mon, May 11, 2009 at 11:58 PM, Jason Brooks <jason@xxxxxxxxxxxxxxx> wrote:
> Hello,
> I have successfully used the following command line, but I would like to
> have some modifications.  I would like the virtual disks to show up as disk
> paritions, rather than entire disks.  1) is there a way to do this via the
> command line,

First of all, even though you can name virtual disks as "sda1" or
"xvda1", they're actually still recognized as disk, not partition.
The consequence of that is you can't use the official installer (like
Redhat's Anaconda) since they can't install to whole disk. That means
virt-install won't work either as it invokes the OS installer (like
Anaconda) in the process.

One way to do it is manual template-based installation, like (for
example) using template from jailtime.org.
I posted a mail sometime ago about converting jailtime.org Centos
image to be able to boot using pygrub, which you might find

> and 2) are there any real performance differences?

Not really. Not if you don't use LVM on domU. If you use LVM on domU
it would add about 3% performance penalty.
The main difference would be managability. If you export the virtual
disk as "partition", mounting in on dom0 would be easier.



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