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0
votes
1answer
54 views

Setting up reverse proxy for virtual machines on HostOS

I am currently installing a server that consists of a Virtualization Host (kvm on ubuntu) and 7 VM's, some running MySQL and LDAP, others running different webservers and webapplications. The VMs ...
3
votes
2answers
105 views

Access KVM virtual machines over VNC without port forwarding with SSH

Is it possible to access the VMs without having to forward the remote port and VNC to the localhost? I'd like to be able to VNC into the KVM server and see the VMs display.
0
votes
2answers
140 views

How do I setup an Ubuntu Server for KVM Virtualization?

I' trying to setup an Ubuntu Server 10.04 LTS install to host a number of KVM virtual machines to do web development. I tried to install a VM with virt-installer from the CLI but I have to connect to ...
0
votes
1answer
50 views

Setting virtual interface names in KVM/Qemu (tap devices)

I have a few KVM machines that I put under a private network using tap devices. I have also setup their /etc/network/interfaces so that each one gets proper ip address. I copied my setup to another ...
6
votes
1answer
155 views

Simulating a missing superblock error on EXT4 linux system

I'm trying to write reference material for a friend who has power outages a couple of times a year which affect their linux server. This person is not well versed in linux systems administration, so I ...
1
vote
1answer
103 views

CPU usage is very large in top command of Linux

I run SUSE Linux Enterprise Server 11 SP1 in a virtual machine. The hypervisor is KVM. There is 4 virtual CPU cores for the VM. Now there is a very strange thing. In theory the maximum CPU usage ...
0
votes
2answers
217 views

Windows XP guest problems

I have installed (painfully - almost 6 hrs, though I have done the acpi tricks at cd boot) Windows XP SP2 as a kvm guest. However, the network performance is terrible (~200 kbps with small bursts up ...
1
vote
4answers
1k views

How to mount virtual machine's LVM partition on KVM host?

If I trying to do following on KVM host: # kpartx -av /dev/VolGroup00/kvm101_img add map kvm101_img1 : 0 208782 linear /dev/VolGroup00/kvm101_img 63 add map kvm101_img2 : 0 125612235 linear ...
4
votes
3answers
751 views

Is KVM stable enough for production use in 2011?

We are planning to virtualize the existing infrastructure by an open source virtualization solution. KVM and Xen are on the final list. Big cloud players are still using Xen, and we found that KVM is ...
1
vote
1answer
229 views

Linux-KVM / iptables: prevent guest spoofing by matching ip+mac address on bridge?

I have my KVM guests on a standard br0 bridge setup: auto br0 iface br0 inet static address 192.168.1.117 netmask 255.255.255.0 network 192.168.1.1 broadcast 192.168.1.225 gateway ...
2
votes
1answer
208 views

KVM Virtualization Host Upgrade from RHEL 5 to RHEL 6

I have Linux KVM guests running on CentOS 5.5 hosts. These guests usually run CentOS 5.5 also. Now I will have a RHEL 6 cluster. I need these guests to be moved to the RHEL 6 cluster. I do not ...
0
votes
1answer
280 views

Linux-KVM and Ganeti - help me understand / deploy

Looking to build a small (but future proof) Linux-KVM cluster with Ganeti I'm starting my setup with 2 HVM machines, each with 2x 500GB SATA disk. I've studied the documentation and I have a fair ...
0
votes
0answers
71 views

losing DNS after setting up network bridge in Centos

I'm setting up bridged networking for some VMs. After setting it up (following this: ...
2
votes
2answers
186 views

Partions, RAID, LVMs, and Encryption

I have an existing production server that is running 4 drives each 750 GB in size in two software RAID levels. RAID 1 for the /boot partition and RAID 5 for the rest of the partitions including the ...
7
votes
2answers
490 views

Linux-KVM networking advice?

Being new to virtualization in general, and somewhat new to Linux (using Debian Squeeze and coming from BSD) I have a hard time understanding what would be the best network bridging option for my host ...
0
votes
1answer
444 views

kvm Bridge issue - no network to guest

I currently have a Proxmox (debian) KVM host running multiple OpenVZ Containers for general usage, I am looking at creating a KVM VM however I'm unable to get networking to work for the CentOS KVM ...
1
vote
2answers
127 views

xen to kvm migration

i've just migrated some xen vms to kvm. so far everything is working fine. except for one little thing: when i start virtual-manager and looking at the vm's display, there is no login: prompt. i ...
0
votes
1answer
190 views

KVM import/export process for movement between boxes

How can I export a KVM VM from one machine, and import it to another machine also running KVM? The host to export from is running CentOS, and the import host is running Red Hat. I've tried to find ...
1
vote
1answer
104 views

KVM QEMU looses USB devices

I have a KVM Qemu setup. I'm mapping a USB device to a VM running windows vista. I get the device mapped, and all is well for some time. Suddenly the device disappears in Vista. If I do "lsusb" in ...
0
votes
2answers
371 views

Linux KVM virtual machine and UDP transferts

I've got a setup where a windows 2008R2 VM runs under KVM on a bridged network and captures a lot of multicast UDP data (from videosurveillance cameras). Strangely, the VM network drops packets after ...
0
votes
3answers
460 views

Convert directory to QEMU/KVM virtual disk image

I have a directory filled with data at /var/backups/disk1 that I want to convert into a virtual disk image which I'll then be able to boot using QEMU or KVM (the directory contains the file system for ...
1
vote
1answer
181 views

KVM guests clustering

I am running KVM with two guests(win server 2003) on Centos 5.5 how can I cluster two win server on KVM?
0
votes
1answer
868 views

How to migrate a running KVM (with full disk copy) to another node?

I'm doing tests on KVM, and I'd like to see if I can make a hot migration, I mean the virtual machine won't stop running during the migration (but a few seconds of freeze is ok). I use a small ...
0
votes
1answer
620 views

Gluster FS as storage for VPS

Do you think that KVM (or XEN) virtual machine using GlusterFS as storage will be really slow. My idea is to use GlusterFS to avoid the limits of the local file system. If an hypervisor will go down, ...
0
votes
1answer
316 views

KVM boot from an iso?

I'm having trouble with a hosting company that can't seem to install a slackware-13.1.iso image O.o I'm not sure if they're just trying to fool me around or it's really possible. I would appreciate ...
2
votes
3answers
1k views

KVM-Guest does not boot: qemudParsePCIDeviceStrs

I have a Server running Ubuntu 10.10 Server-Edition kvm, and libvirt (both ubuntu-native packages) HDD-Partitioning was done with LVM. Then I created some VMs with Virt-Manager and assigned ...
0
votes
3answers
428 views

How to migrate KVM based VMs running in LVM setup to Vmdk images

I am using KVM on Ubuntu Server 10.04. and Virtual Machines are running on it in LVM. I have to migrate some of them to Vmware server.How can I achieve this? I searched and came across some links but ...
1
vote
2answers
650 views

KVM Virtual guest Paused on Reboot

I'm running REHL 6 and just installed a Ubuntu Server Guest via KVM set to start at boot. This works correctly and the guest loads, but it loads "paused" and requires that I manually un-pause it. Can ...
4
votes
5answers
284 views

IOps required to boot a KVM instance

What are the minimum requirements to boot a KVM instance. I want to boot 1000 instances all at the same time and I am using a NAS environment. I want to make sure that I know what the IO requirements ...
1
vote
2answers
282 views

KVM Virtualisation, Console output no longer working

I used to use KVM for virtualisation and have now moved back to it, but I have a problem. When i used to install the guest machine with virt-install i used to use the -x "extra args" part to set the ...
5
votes
3answers
2k views

Backing up qcow2 kvm guests

I can't find any good info on backing up qcow2 kvm guests. I'm not really interested in the guests running state, only the file system. This question suggests using savevm but that creates a snapshot ...
2
votes
2answers
628 views

RedHat Enterprise 5.6 trial install KVM

I am trying to run KVM on RedHat Enterprise Linux 5.6 trial, and I tried following the tutorial in http://www.cyberciti.biz/faq/centos-rhel-linux-kvm-virtulization-tutorial/ If I do yum groupinfo ...
1
vote
1answer
293 views

Enter BIOS in virtualized RedHat Enterprise Linux running in KVM

How can I enter BIOS in a virtualized RedHat Enterprise Linux 5.6 running in KVM ? I can send Ctrl+Alt+Delete, but GRUB boot loader loads up so fast I cannot press F2 / Delete.
1
vote
1answer
562 views

KVM - Problem installing Windows 2003 guest on Debian Lenny 64bit Host

I have a Debian Lenny 64bit host and had kvm installed with a windows 2003 working just fine but i noticed how old the kvm version in the standard packages was so I decided to update using debian ...
2
votes
3answers
1k views

No IPv4 address assigned to KVM VM

I'm having trouble setting up KVM w. bridged networking in Ubuntu 10.10. I'm starting my VM through virsh, after this I can see the kvm process and vnet device on the host machine, but the new ...
0
votes
1answer
903 views

How to mount/resize/modify LVM partition in KVM qcow2 or raw images?

I have KVM qcow2 and raw images. Virtual machines are partitioned with LVM. Now I want to resize the root partition of a few machines so I guess I have to do this from the host. My question is: how ...
0
votes
1answer
333 views

How to whitelist range of MACs in 75-persistent-net-generator.rules?

I have a Debian Squeeze (2.6.32-5) guest in KVM that has all virtio network interfaces, and their MACs are apparently blacklisted by udev as per /lib/udev/rules.d/75-persistent-net-generator.rules ...
0
votes
1answer
492 views

How to monitor guest virtual system from KVM host (CPU, MEM, HDD, NET, …)

How can I monitor statistics like cpu, memory, disk or network activity from KVM host of some guest system. It needs to be from command line of the host system. Is it somehow possible?
0
votes
2answers
461 views

how to find out if running inside KVM guest

Is there a way to find out if OS(linux) is running inside KVM guest..
3
votes
3answers
2k views

Best way to share a folder between KVM host and guest

I'd like to share a folder between a KVM guest and host. I want the data to be stored only on the host. What's the best solution for that? thanks mat
2
votes
1answer
193 views

iptables string match works on VM host but not guest

Have been tested some iptables string match rules on Linux KVM virtual machines with a bridged interface (Fedora 12 & 13 64-bit), for example a rule in the INPUT Chain that is before other port 80 ...
0
votes
3answers
196 views

Access VMs via terminal during installation?

I'm trying to install some Lucid VMs on a Lucid host using virt-install. After I create the image, I want to go through the guest installation without using a GUI, such as virt-manager or VNC. Is ...
0
votes
1answer
1k views

KVM network bridge with public static IP for both host and guests

I have a Ubuntu 10.04 server with 2 public static addresses. There is a KVM guest (also Ubuntu) installed and running. What i want is to give the guest an IP of the host, so that both machines have ...
0
votes
1answer
434 views

How do I migrate guests running on Xen to KVM?

Is it possible to migrate some Xen DomU guests on an Debian Etch Dom0 running Xen 3.2.1? The guests are various versions of Ubuntu 8.04+ or Debian. The new machine is Ubuntu 10.04 running kvm.
5
votes
3answers
3k views

Using LVM snapshots for KVM virtual machine clones

So, I've got a pretty awesome KVM setup running now, CentOS5.5 on the host and guest domains, libvirt managing all the configuration, etc. The guest domain filesystems are stored in LVM on top of a ...
1
vote
1answer
651 views

Create bridged networking in KVM without libvirt

I've created a bridge on the host with a method similar to the one here: http://wiki.libvirt.org/page/FAQ#Why_doesn.27t_libvirt_just_auto_configure_a_regular_network_bridge.3F However, to link the ...
2
votes
2answers
802 views

Mount LVM within a disk image

I have a disk image that I made with KVM. The partition layout inside the disk image is as follows. [root@centreon01 2tb-external]# fdisk -lu vdisk1.img Device Boot Start End ...
5
votes
3answers
268 views

file corruption on read/write 2.6.32-22-server (happens across many kernels)

I'm having an issue where after the server has been up for a period of time (~week/few days) the server will start reading corrupt data. For instance when I run a sha1sum of a file after a fresh boot ...
0
votes
2answers
2k views

virtualisation with kvm: export services from guest to the host

I would like to export some services from the guest os to the host os, via kvm, and by the same way learn some things about networking. I have tried the following commands: In the host (kubuntu ...
7
votes
8answers
2k views

Is anyone using KVM in production?

I've been trying to set up a pair of servers utilising KVM on Ubuntu 9.10 to host 8 virtual machines between them and ended up with various issues from the VMs freezing, to not powering on. I had one ...

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