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
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 davea@ingraftedsoftware.comwrote:
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
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
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@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 <davea@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
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
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@gmail.com mailto:adam0x54@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@ingraftedsoftware.comdavea@ingraftedsoftware.com mailto:davea@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 _______________________________________________ CentOS-virt mailing list <mailto:CentOS-virt@centos.org>CentOS-virt@centos.org <mailto:CentOS-virt@centos.org> <http://lists.centos.org/mailman/listinfo/centos-virt>http://lists.centos.org/mailman/listinfo/centos-virt
CentOS-virt mailing list CentOS-virt@centos.org mailto:CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
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@gmail.com mailto:adam0x54@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@ingraftedsoftware.comdavea@ingraftedsoftware.com mailto:davea@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 _______________________________________________ CentOS-virt mailing list <mailto:CentOS-virt@centos.org>CentOS-virt@centos.org <mailto:CentOS-virt@centos.org> <http://lists.centos.org/mailman/listinfo/centos-virt>http://lists.centos.org/mailman/listinfo/centos-virt
CentOS-virt mailing list CentOS-virt@centos.org mailto:CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
On Thu, Feb 25, 2010 at 07:58:04PM -0600, Dave Augustus wrote:
Thanks for all the responses!!!
I finally realized that when running Xen and in Dom0, Xen hides the AMD-V in /proc/cpuinfo
Yes, because AMD-V is used by the Xen hypervisor. Dom0 is just a guest, so it doesn't see the AMD-V capability in /proc/cpuinfo.
-- Pasi
On Wed, Feb 24, 2010 at 08:16:53AM -0600, Dave Augustus 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.
What does "xm info" say about caps/capabilities? Do you see hvm supported?
Xen HVM guests require CPU virtualization extensions (Intel VT, AMD-V) to be present and enabled in the BIOS.
-- Pasi
On Wed, Feb 24, 2010 at 1:38 PM, Pasi Kärkkäinen pasik@iki.fi wrote:
Xen HVM guests require CPU virtualization extensions
... snip ...
and enabled in the BIOS.
This seems obvious but has caught me before, wasting some time. Dell PowerEdge systems seem to ship with virt disabled in the bios.
-Iain
-
Adam -
Dave Augustus -
Dennis J. -
Iain Morris -
Pasi Kärkkäinen