2
votes
1answer
103 views

Poor network performance with KVM (virtio drivers) - Update: with vhost_net

I've set up several KVM based networks before, and never encountered this issue, can't for the life of me think what I'd have set up differently previously. Setup Basically, Ive got and entirely ...
0
votes
0answers
46 views

CentOS Host KVM Virtual Machine running a Windows VM - No internet access

I've installed a KVM virtual machine on a CentOS host using libvirt. I've also set up a bridged connection from the interface en0:4 running on IP x.x.x.15 to br0. (The IP is a public one). Running ...
11
votes
2answers
2k views

Linux containers (LXC) on Red Hat/CentOS EL6 - lxc-create versus libvirt?

It's tricky trying to stay within the good graces of Red Hat and still plan for system longevity... I've been a proponent of Linux Containers (LXC) for over a year. My initial installations were ...
0
votes
1answer
126 views

assign public IPs to vm guests

I have a set of public IPs for virtual machines. Each unique public IP is to be assigned to a unique guest. With bridged networking I share eth0 with KVM machines. The ifcfg-eth0 file has ...
0
votes
2answers
121 views

KVM XML config file

I have a KVM server that I expanded the LV of then rebooted. However now when booting I get the error: error: Failed to create domain from /home/kvm/kvmx/kvmx.xml error: (domain_definition):1: ...
0
votes
1answer
197 views

kvm/qemu via libvirt on CentOS - pass string or key/value or file to guest

I have a sizeable deployment of qemu/KVM VMs already, managed through libvirt. They're all CentOS 5 or 6 hosts and guests (the kernel lacks the 9p filesystem flags, so the "mount" shared filesystem ...
2
votes
4answers
2k views

libvirt network error - no 'default' network device found

My original purpose is to create centos image for openstack. Although I did directly with kvm, still wondering about error. Was using this manual for my task. After this command: # virt-install ...
1
vote
2answers
766 views

Ovirt doesn't create live snapshot

I installed oVirt. If I suspent VM and create snapshot it's ok, but if I try to do live snapshot on the stage "Finalizing" ovirt have fail. Ovirt, VDSM and NFS storages are on the same local server. ...
0
votes
1answer
560 views

CentOS/KVM-libvirt: Public IP on VMs

I'm trying to set up a working vm with public ip adress, but I can't get it working. Here's my config : Network: range: 101.110.22.41 - 45 netmask: 255.255.255.248 gateway: ...
1
vote
0answers
56 views

Domus Memory Used Issue With Xen On CentOS

Anyone know why I'm receiving this error? I compiled latest libvirt from source, I also tried with various rpm. I would like to get memory used by domus and it looks like it's not working with Xen 3 ...
0
votes
1answer
686 views

CentOS libvirt reboot

I've noticed the following status message after system update (on SL 6.1 - yum update): # /etc/init.d/libvirtd status libvirtd dead but pid file exists one of the updated packages was "libvirt". ...
1
vote
1answer
2k views

Where should CentOS users get /usr/share/virtio-win/drivers for virt-v2v?

I need to migrate a number of virtual machines from VMware ESX to CentOS 6 KVM hypervisors. Ultimately, I wrote an RPM spec file that solved my problem at ...
2
votes
1answer
3k views

error: internal error process exited while connecting to monitor: Supported machines are:

I'm moving Ubuntu Server guest machines from an Ubuntu Server Host to a CentOS 6 Host machine. My intent is to keep the guests as Ubuntu Servers and just change the OS of the Host. I've moved the ...
2
votes
2answers
2k views

qemu-kvm/virsh: No network connectivity whilst using bridged networking

I'm having an issue with performing virtualisation via libvirt/qemu-kvm, in which my set up for bridged networking doesn't appear to be working correctly. I've followed every tutorial I can find and ...
2
votes
1answer
3k views

how to install a CentOS 6.0 KVM guest on a CentOS 6.0 host server with virt-install and PXE

The host server (running CentOS 6.0) only has one public IP address and will be hosting many KVM guests so it needs to use a virtual network switch configuration in NAT mode. I have previously used ...
0
votes
1answer
730 views

Set host firewall so VMs obtain dynamic IP from dnsmasq

Virtual machines (KVM/libvirt) fail to obtain a dynamic IP address from the libvirt-launched dnsmasq running on a CentOS host when the firewall is running. When I turn off the firewall (CSF), the ...