[CentOS-virt] moving from Xen to KVM

Fri Feb 26 01:58:04 UTC 2010
Dave Augustus <davea at ingraftedsoftware.com>

Thanks for all the responses!!!

I finally realized that when running Xen and in Dom0, Xen hides the
AMD-V in /proc/cpuinfo

(...more reasons to move to KVM)

Now to convert my Xen vms to KVM.

--
Dave


On Thu, 2010-02-25 at 02:32 +0100, Dennis J. wrote:

> Do you have the "kvm" package installed?
> Also what exactly do you mean by "KVM as well"? Are you aware that you can 
> only run Xen or KVM but not both at the same time on the same host?
> 
> Regards,
>    Dennis
> 
> On 02/25/2010 12:14 AM, Dave Augustus wrote:
> > What is needed to install kvm? I have the non xen kernel as the default.
> > I have virsh, virt-install installed. What am I missing in my config?
> > Look at my second bullet point to get a sense of where I am stuck.
> >
> > Thanks for your help,
> > Dave
> >
> > On Feb 24, 2010, at 12:14 PM, Adam <adam0x54 at gmail.com
> > <mailto:adam0x54 at gmail.com>> wrote:
> >
> >> Did you install kvm?
> >>
> >> If you need to move the xen virtual machines to kvm you will need to
> >> boot them in rescue mode, change your modprobe.conf to load the
> >> regular scsci and nic drivers, install a regular kernel, remove the
> >> xen console from inittab and remove console=xvc0 from your
> >> /etc/grub.conf and reboot.
> >>
> >> -Adam
> >>
> >> On Wed, Feb 24, 2010 at 9:16 AM, Dave Augustus <
> >> <mailto:davea at ingraftedsoftware.com>davea at ingraftedsoftware.com
> >> <mailto:davea at ingraftedsoftware.com>> wrote:
> >>
> >>     Hello All,
> >>
> >>     I have been building a new server to deploy using Xen. However,
> >>     seeing that Redhat is moving towards KVM, it would seem beneficial
> >>     to deply this server using KVM as well. This is a Centos 5.4
> >>     x86_64 fresh install.
> >>
> >>     So here is the scoop:
> >>
> >>         * running the xen kernel with 2 vms works great. I have 2 vms-
> >>           a cobbler host and an ldap host.
> >>         * running with non-xen kernel, I can't seem to get anything to
> >>           work right. Using virt-install from the command line, I get
> >>           the response of "Host does not support any virtualization
> >>           options" yet I know it does.
> >>
> >>
> >>     What am I missing here?
> >>
> >>     I spent some hours last night searching and came up empty.
> >>
> >>     Thanks in advance,
> >>     Dave
> >>
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> >>
> >>
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