KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, ...
2
votes
0answers
13 views
Strongswan vpn tunnel connected but the traffic is not routed through it
I have just set up a vpn tunnel site-to-site with strongswan (4.5). The tunnel looks fine and connected to the other side, but seems there is a problem routing traffic through the tunnel.
Any idea?
...
0
votes
0answers
7 views
libvirt vm cant connect to smtp
I have a problem with one of my virtual machines.
In my Setup the kvm/libvirt hypervisor acts as the firewall and does all the NAT.
There is 1 virtual networt (virbr2) in which all VMs are.
...
0
votes
0answers
13 views
Routing issue with KVM: Gateway on different Subnet than VM
I have Server at hetzner.de, with a /29 subnet for running KVM-VMs. The VMs get network access via a bridge interface. I'm currently using two IPs from the subnet. The VM-host is running Ubuntu 12.04 ...
0
votes
1answer
20 views
Equivalent of VMwareResolutionSet.exe for Linux KVM
My company is planning on migrating from our current VDI environment that runs on VMWare and uses HP's RDS protocol, to a solution that is based on Linux KVM/Openstack. Many of the employees use ...
0
votes
1answer
24 views
Fastest way to clone KVM VMs to be run simultaneously (create a branch VM)
IF I need to have concurrently running versions of a Windows VM (using KVM 0.10.2 on CentOS), each one configured differently ( a snapshot that will then branch off unto its own VM) what is the best, ...
-1
votes
1answer
33 views
frequently running KVM remote VMs locally - virtualization software [closed]
I have a Linux server which runs KVM. I connect to the headless VMs over rdp and vnc. Frequently I want to download the VMs and run them locally on my computer and again re-upload them later ...
-2
votes
0answers
18 views
When starting a redhat guest in kvm context switching becomes very high
On a CentOS 6 I start a RedHat 5 guest which is quite idle. The guest is quite idle but the host immediately has context switching becoming very high.
If I launch many processor (not disk) consuming ...
0
votes
0answers
22 views
Tunneling PPTP VPN and network setup for bridged KVM running Windows 7 enterprise on Linux host [migrated]
I'm using a Win7 provided image from work to run inside qemu-kvm (libvirt/virt-manager). The host is running Debian Wheezy.
The Win7 VM wants to join the company AD and has certain tools to check if ...
1
vote
1answer
32 views
Is it possible to create an equivalent environment of a KVM guest using QEMU for Windows?
I have a KVM guest in a datacenter that is my production server for a service I am developing. I would like to create an equivalent virtual environment on my Windows machine so I can be sure that ...
1
vote
2answers
50 views
KVM guest has wrong outgoing IP address
I'm having the same problem that's described in the following question here, however no clear answer was given.
KVM guest has a wrong outgoing ip address
My KVM host has an IP address of ...
1
vote
2answers
29 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.
...
1
vote
0answers
23 views
Ubuntu 12.04 KVM host high load with idle ubuntu 12.04 guests
I am stuck with this one.
Clean install Ubuntu 12.04 server 64bit on two physical machines. Machines are identical except one has 8GB RAM and the problem machine has 32GB RAM, both machines were ...
0
votes
3answers
47 views
Virsh can't connect to ovirt hypervisor
I installed Ovirt and want to add network interface for NAT. So I need to connect to hypervisor by virsh and add nic.
Ovirt installed on my local server, host (ovirt-engine.kvmserver.net) is on the ...
0
votes
2answers
33 views
kvm: 23090: cpu0 unhandled wrmsr 0x391 data 2000000f
I installed kvm on CentOS 6.4. I created virtual server CentOS_test on it. When I start CEntOS_test I have message:
kvm: 23090: cpu0 unhandled wrmsr 0x391 data 2000000f
What is it mean? CentOS_test ...
0
votes
1answer
102 views
UBuntu 13.04 Server with a Windows 2008 VM
I have a ubuntu 13.04 server. On it I have a virtual machine (kvm), with Windows 2008 on it.
I have configured /etc/network/interfaces to have a bridged connection to the machine, so I am able to ...
-1
votes
0answers
65 views
vmware esxi 5.0 nested kvm hypervisor [closed]
I have to do a project for my university so my teacher has given me a VM created with Vmware Esxi 5.0.
Inside this VM i have installed Ubuntu 13.04 server and afterwards i installed nova-compute, ...
0
votes
0answers
22 views
looking for a fast way to copy a template to a KVM guest
My KVM guests each has a logical volume on the host to be the entire virtual disk. What will be a fast way to copy a template over to the guest's virtual disk? I tried to create a lzop compressed file ...
0
votes
1answer
33 views
Virtmanager connection via custom SSH command?
I'd like to use virt-manager to manage my libvirt/kvm virtual machines running on a remote host, but the method I use to ssh into that host it a bit complicated. I need to use custom ports along with ...
0
votes
1answer
104 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: ...
-3
votes
0answers
101 views
GPU passthrough to KVM or Esxi [closed]
well i got intel server with 2 xeon 2690. the thing is im going to run a lot of VMs that use youtube(flash player), the thing is if i have a graphic card than most of the resource will go to the GPU, ...
-1
votes
0answers
17 views
Routing issue from virtual machine in weird network situation [migrated]
I have a a bit complicated network topology
I have a router from my ISP with the network 100.0.0.0/24, the router's IP is 100.0.0.1
My own Linksys router has 100.0.0.2 plus 192.168.1.1 for my LAN
I ...
-1
votes
0answers
59 views
Does QEMU on CentOS 6.4 have VirtFS/filesystem passthrough functionality? [closed]
I am attempting to set up a passthrough filesystem as per the example here: http://www.linux-kvm.org/page/9p_virtio . I have tried the approach both from the command line and from the GUI and I get ...
1
vote
2answers
37 views
How to create multiple clones of a VM in KVM/libvirt?
I (will) have a VM in libvirt (using QEMU/KVM) that I will set up and consider the "gold master". I would then like to be able to clone it 'n' times to create multiple systems. What is the best way to ...
0
votes
1answer
60 views
KVM guest clock sync with host
I'm running KVM w/ centos 6.x.
My guest vm clocks are booting with a 1-2 second lag from their host. My clocksource for the host is ntp. My clocksource for the guest is "kvm-clock", but I need to ...
0
votes
1answer
34 views
KVM copy contents of image into raw smaller LVM2 partition
I have a KVM guest, running on a KVM host...both Gentoo Linux.
The guest is called webserver.img. It is 21 gigs large, but I am only using 5 gigs inside the image.
I want to make a logical volume ...
0
votes
0answers
68 views
Routed libvirt/KVM network: response packets never reach guest
I'm desperately trying to get a routed networking up and running, but having extreme trouble with the setup.
My Dedicated Server has 2 public IP addresses in the same subnet. I want to use 1 IP for ...
0
votes
1answer
32 views
Pings are dropped when pinging a specific KVM guest
I had a seriously latency when using SSH to Server1 and noticed when I ping Server1 that a lot of packets are dropped. When I go to Server1 and enter ifconfig I do not see any errors or dropped ...
0
votes
1answer
60 views
Snapshot a KVM guest with non-file storage
I am preparing at least one Windows 7 guest on a KVM Linux (ubuntu) host. I have made an LVM-based storage pool which I would like to use. My main concern is snapshots. The disk-image will be ...
0
votes
0answers
25 views
error: unknown OS type hvm
I am working with opennebula , trying to install it for quite some time but I am getting the following error
error: unknown OS type hvm
my /var/log/one/<vm-id>.log file is as follows:
Wed Apr ...
0
votes
0answers
17 views
virsh attach-device for serial device
I would like to add a serial device (console) to a guest via the virsh attach-device command.
I have a console.xml file containing:
<serial type="pty">
<target port="0"/>
...
0
votes
1answer
102 views
Hyper-V vs KVM for running Ubuntu + Windows
I am currently planning to set up a server for virtualisation. It will be running about half Windows 2012 servers and half Ubuntu. Would it be better to use hyper-v or KVM as the hypervisor as I am ...
0
votes
0answers
49 views
How do I set up kvm with static guest ip address in another subnet?
I have setup a bridge which works fine. However when I assign a static address to the kvm guest in another subnet I can't access the internet. How do I solve this?
0
votes
0answers
35 views
Choosing virtualization management [closed]
I have several dedicated servers hosted in different datacenters.
OS is CentOS and hypervisor is KVM. For this moment I'm managing virtual machines with virsh shell.
So, I'm looking for a ...
1
vote
0answers
81 views
debian KVM - network bonding fails with vlan and bridge
i have a Debian 6 system configured with 2 NICs
these NICs are used on a bond (bond0) which is used by bridge that require to use VLAN.
i can get connection between guests running on VLAN10 but it ...
0
votes
1answer
68 views
Problems virtualizing SBS2003 server to KVM on Debian
I have a server with sbs2003. I would like to move it to another machine (linux Squeeze Debian), within a KVM virtual machine.
I proceeded like this:
Installed the disk2vhd.exe application on the ...
0
votes
0answers
67 views
KVM: LVM snapshots on qcow2 images
I have an LVM2 logical volume that is formatted with ext4 and mounted to a directory on /opt. On that volume is a qcow2 KVM image for a Windows 7 guest. Can I snapshot the LVM logical volume for a ...
0
votes
1answer
50 views
Debian Squeeze KVM - No Matter How I Setup Bridge, No Connectivity on Guest
I'm attempting to setup libvirt KVM guests on my server, and I've been messing around for two days now trying to get the guest networking working. So far, I haven't gotten anywhere.
My network is ...
0
votes
1answer
98 views
Linux KVM: Troubleshooting dropped packets on a Windows Guest
virsh 0.9.10 Enterprise Linux 6.3
I have a Windows 7 guest running on the KVM host and am frequently seeing 25% loss when pinging other boxes on the same subnet. The first ping request times out, and ...
1
vote
0answers
100 views
Ghost “vlan 0” tags added to ethernet frames in CentOS guest under OpenStack
I'm trying to debug an issue involving a KVM virtual machine instance where the instance doesn't respond to network requests when the source is on another physical machine, which is on the same subnet ...
0
votes
1answer
29 views
KVM how to determine which virtual disk files are in use by VMs
I tried lsof|grep *.qcow2 and got no results back (why is that? I definitely have VMs running using that disk format).
I also considered grepping qcow2 on *.xml within the config directory, but this ...
0
votes
1answer
52 views
IPMI console redirect (KVM) via java applet causes multiple keystrokes
I'm using a dell c6100 and can connect to the web based IPMI management tool, and I can get console redirection running via the java applet.
But many keystrokes (especially enter) generate 2 or more ...
0
votes
0answers
43 views
Inconsistent performance between KVM guest and host
I'm getting a very inconsistent performance with my KVM VPS. Daily performance is good with <1 average load but doing a simple tar extraction easily shoots CPU usage up to 40, with high system (up ...
0
votes
0answers
34 views
KVM and RAM Cache [duplicate]
I have 4 kvm instances with 1 Gb each on a host with 16 Gb RAM.
Now the host is swapping and cache is almost 11 GB.
free -m
total used free shared buffers cached
...
0
votes
1answer
48 views
gateway configuration in kvm guest while live migration
I configured the bridge which are connected to guests to communicate with outside.
And In the guest, i configure gateway to indicate the bridge IP. (currently achieve this with DHCP)
eth0 <--> ...
1
vote
1answer
115 views
DHCP reply packets do not make it into KVM instance in OpenStack
I'm running a KVM instance inside of OpenStack, and it isn't getting an IP address from the DHCP server.
Using tcpdump, I can see the request and reply packets on vnet0 of the compute host:
# ...
0
votes
0answers
35 views
how to carp two interfaces on same node?
I have this CentOS machine with 2 interfaces.
eth0--> br0 (.10)
eth1--> br1 (.11)
Although part of the same network, each interface is being fed from a different switch. I use each bridge in ...
0
votes
1answer
66 views
Set startup order for KVM virtual machines via libvirt?
I have some server applications failing because their virtual machine starts up before the database virtual machines. Anyway to configure libvirt to start them up in a certain order and possible ...
0
votes
0answers
179 views
Unable to download the Kickstart file…
I have tried for several hours to get this Kickstart installation going but to no avail.
I have port 21, 22 and 80 opened and even tried FTP and HTTP to access this Kickstart file but it won't work.
...
0
votes
1answer
68 views
Openvswitch Installation Issue
I am trying to install openvswitch on my ubuntu 12.04 Machine for KVM.
But it is showing
"Module has probably not been built for this kernel"
tried "module-assistant auto-install ...
0
votes
0answers
155 views
VNC faster than Spice for remote access to KVM guest?
Having used RDP before, I'm not exactly thrilled with the performance I am seeing from VNC to my KVM virtual machines. The KVM host is Ubuntu 12.04 server x64. I've read that Spice is faster, and ...
