Re: [CentOS] Install CentOS as KVM guest

[Gleb Natapov <gleb@redhat.com>]

On Thu, Apr 28, 2011 at 07:46:28PM +0800, Emmanuel Noobadmin wrote:
> On 4/28/11, Gleb Natapov <gleb@redhat.com> wrote:
> > So why don't you use virt-manager?
> 
> The original intention was to run the host without any graphical
> desktop or anything not necessary to host the guests. That was based
> on reading and such which recommends not having anything beyond the
> necessary to minimize potential security problems and maximize
> resources available.
> 
Qemu is not intended to be used directly by end user. It is too complex as
you already found out. VMware don't even give you access to such low parts
of virt stack. You should use libvirt or virt-manager instead. Especially
if you are concerned about security. I think libvirt can start guest on
headless server.

If this still fails for you you need to complain to libvirt developers
(not in a rant mode, but providing details of what exact version of
software you have problem with and what are you trying to do). And
libvirt developers will not be shy to complain to qemu developers if the
problem turned to be on their side.

> Then there were those pages which warn that virt-manager didn't work
> too well if bridged networking was required.
As far as I know libvirt has no problem using bridged networking and
virt-manager use libvirt so it should work if you use new enough virt
stack, but you should ask on libvirt mailing list instead.

> 
> Last but not least, when I finally gave up and installed the desktop,
> virt-manager couldn't find the hypervisor. Checking up, it appears
> that the user needed additional permissions to certain files, which
> after given and tested via CLI, I still get errors.
What distribution are you using? I didn't saw recent Fedoras having such
problems (admittedly I do not use libvirt/virt-manager much).

> 
> Starting up X as root gave me this ominous warning that I really
> shouldn't be doing this and since I didn't think it was wise in the
> first place to have the desktop with root access running on what's
> supposed to be a production machine, I stopped trying that route and
> went back to figuring how to get virt-install to work.

--
			Gleb.