Tagged Questions
1
vote
0answers
17 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
1answer
90 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 ...
0
votes
1answer
29 views
Channelling DOM0 internet connection through DOMU
Bit of an odd queston but wanted to know your opinions on the following:
I have a small computer that has Ubuntu (Both DOM0 and DOMU) virtualized using KVM.
Now the person that will handle this ...
0
votes
1answer
55 views
KVM Image Jammed After Power Unplug
We have a HP DL380 Server which has ubuntu 12.04 OS as Host and for Virtualization KVM.
Power of our server unplugged suddenly and after plugging power size of image of vm
in
...
0
votes
1answer
107 views
KVM guest setup problems (Ubuntu 12.10)
-The host system that KVM is running on is Ubuntu 12.10.
- I am trying to install 12.10 on it as a virtual guest.
However, when I issue the virt-install command it replies with this:
Starting ...
0
votes
2answers
91 views
virtualization, guest Network settings error [closed]
i have the following situation ,i have a virtualization environment hos is ubuntu
Host information:
uname -a
Linux asic 2.6.32-38-generic #83-Ubuntu SMP Wed Jan 4 11:12:07 UTC 2012 x86_64 ...
0
votes
2answers
121 views
How to physically bridge network interface KVM - Ubuntu 10.04
I have a host installed Linux/Ubuntu 10.04 LTS on a Dell PowerEdge server with 4 NICs interfaces, so how can I dedicate a network interface for Guest Machine ?
0
votes
1answer
76 views
what is Virtualization kvm vnet1 and vnet2
please any one can advice what is vnet1 and vnet2 in kvm Virtualization as iam using host ubuntu 10.04 LTS
as i have a bridge and everything is running perfect but when i did the command brctl show
...
-1
votes
1answer
153 views
Cannot access Qemu/KVM virtual using console, VNC, or SSH, or access via network (IP range no longer valid) [closed]
I have the host sitting here next to me, so you'd think I'd have decent control of the guest. I should add that I have already attempted various other means, such as mounting the drive, but I have ...
0
votes
0answers
267 views
“sched: RT throttling activated” KVM host - what does this mean?
Ubuntu 12.04 64bit - under a KVM parent.
32 cores.
So we seem to be having some load issues.
We have noticed this line in kern.log: "kernel: sched: RT throttling activated"
What does this mean?
Is the ...
0
votes
2answers
157 views
KVM - Guest does not recognize second NIC
I have a server running Proxmox (a virtualization platform), and created a KVM virtual machine with Ubuntu Server 12.10. After configuring the network, everything works fine, but if I add a second ...
2
votes
1answer
169 views
Assign public and private IP addresses for a KVM guest
I would like to create a KVM guest with two different IPs, like one public IP and another private IP for the same KVM guest.
My host is 210.x.x.x. Series and Guest are also configured with the ...
1
vote
1answer
209 views
Ubuntu 12.04 KVM running Ubuntu 12.04 with linux-image-virtual crash on boot
One of my VMs is stuck on "pause" in virsh. If I destroy and restart it, it will go to pause after a bit of time as "running".
I can at best enter my username at login if I'm quick but it'll then ...
1
vote
1answer
135 views
Ubuntu server 12.04 having 7GB disk usage discrepancy
I did a fresh install of ubuntu server 12.04 as a KVM virtual guest. I used a kickstart file to automate the installation, I've included the command to create the guest as well as the partitioning ...
0
votes
0answers
85 views
Creating a Scientific Linux KVM virtual machine over FTP causes errors from Virt-manager
so currently I am attempting to create a new KVM virtual machine using Virt-manager. I've extracted the .iso of Scientific Linux into the root folder of vsFTP I've set up with anonymous access. When ...
0
votes
0answers
114 views
Ubuntu-vm-builder failing to build 12.10 amd64 KVM servers
I am trying to create a KVM vm running quantal, but its ending badly.
These are the parameters I am passing...
sudo ubuntu-vm-builder kvm quantal \
--arch 'amd64' \
...
-2
votes
1answer
161 views
ubuntu's average load never below “0.00 0.01 0.05”
I have several ubuntu 12.04 VMs running on a ubuntu 12.04 KVM host. Those of the virtual machines that are totally idle with no services (except syslog and the other "small" standard stuff of a fresh ...
0
votes
0answers
213 views
libvirt's dnsmasq does not respond to dns queries or provide dhcp
This is on Ubuntu 10.04 server, using KVM to run Ubuntu guests. This system has been working for a long time and I have not changed anything (other than applying security updates), but today I found ...
0
votes
3answers
303 views
Windows Guest VM no internet on Ubuntu KVM host
I installed Windows 7 as a guest in KVM running on Ubuntu 12. Windows seems to be running fine with the exception that it can't access any external domains or IPs.
The guest can ping the host's IP ...
1
vote
2answers
112 views
KVM + Cloudmin + IpTables
I have a KVM virtualization on a machine. I use Ubuntu Server + Cloudmin (in order to manage virtual machine instances).
On a host system I have four network interfaces:
ebadmin@saturn:/var/log$ ...
0
votes
1answer
269 views
KVM virtual machine networking, NAT and bridge together
I have two running KVM guests on an Ubuntu (Lucid) host. One of them uses the simplest NAT method, and DHCP inside. The other uses the bridge method and static IP inside. Both work fine. Can I mix the ...
1
vote
0answers
509 views
How to make sysctl network bridge settings persist after a reboot?
I am setting up a notebook for software demo purpose. The machine has 8GB RAM, a Core i7 Intel CPU, a 128GB SSD, and runs Ubuntu 12.04 LTS 64bit. The notebook is used as a KVM host and runs a few KVM ...
0
votes
1answer
152 views
ubuntu qcow2 image for local usage
I'm using kvm and I would like to run ubuntu server on it. My goal is to run db2 database instance for development.
Is there ready to use ubuntu qcow2 images online for such purpose?
Or should I ...
0
votes
2answers
159 views
Ubuntu with KVM guest VM and broken bridges
I have an Ubuntu box with a KVM guest VM running. They use bridging so the guest VM attaches to the physical network of its host. The guest VM has 2 NICs in 2 different bridges.
First NIC of the VM ...
-1
votes
2answers
5k views
How to decide between Xen or KVM? [closed]
I am going to set up a high availability hosting server (load balancer, mysql, apache, php, memcached, apc, possibly a distributed/network file system of some kind) with two nodes. I want to isolate ...
0
votes
2answers
2k views
How to bridge a range of public IPs to KVM virtual machines on Debian/Ubuntu
I've been trying for weeks to figure out the right network configurtion for sharing a range of public IPs with KVM virtual machines running on my server, but so far with little luck and with the help ...
0
votes
3answers
450 views
Converting VMWare VMs to KVM
I have a dozen VMs running on VMWare. I also have a half dozen VMs running on Ubuntu+KVM. I've found KVM much easier to manage (no Windows-only GUI and insanely cheaper), so I'm trying to migrate away ...
1
vote
4answers
4k views
Import existing VM into Openstack/Cloudstack
We're currently running our infrastructure with XEN + CentOS and are thinking to make the move to Ubuntu (Both as Host and Guest) + KVM.
Our objective is to, at a later stage, create a private cloud ...
0
votes
1answer
419 views
Simple KVM with NAT networking won't run
I'm trying to set up a test VM in KVM according to the steps described here:
https://wiki.iac.isu.edu/index.php/KVM_Virtualization#Example_vmbuilder_Commands
My host system is Ubuntu 10.04. This is ...
2
votes
3answers
200 views
Recovering running KVM guest disk image
I am running several KVM guests on an Ubuntu 10.04 host. Due to carelessness, the qcow2 images of the running hosts have been deleted. They are still running and responding properly as well as ...
0
votes
2answers
986 views
KVM Guest Shows High CPU Usage in Host but not in Guest
Host is Ubuntu 10.04 Server. 8 physical cores. Guest is Ubuntu 12.04; its allocated two CPU. I have other VMs, but the last few days I've run only this one guest.
Top inside the guest reports load ...
0
votes
1answer
218 views
Slow performance by PHP directory operations on virtual machine (Ubuntu libvirt)
Some days ago I installed an Ubuntu server and two running virtual machines with libvirt.
Everything works fine except one performance problem.
Everytime when I call a PHP script with directory ...
2
votes
3answers
993 views
KVM: maximum number of cores and amount of memory for VMs
I have a new 8 core machine with 16GB of RAM. I want to run VMs on it using Ubuntu and KVM. Nothing else but SSH will be running on the host.
My question is what is the maximum amount of cores and of ...
0
votes
1answer
558 views
Add Two Bridged Interfaces on Ubuntu for KVM
I have ran the following;
sudo /usr/sbin/brctl addbr br0
sudo /usr/sbin/brctl addif br0 eth0
And added the following to /etc/network/interfaces;
auto br0 # for XPProxx86 KVM
iface br0 inet dhcp
...
1
vote
2answers
271 views
Downloads stuck from a VM run by libvirt (kvm) on Ubuntu 10.04 LTS
I first wrote my problem on stackoverflow thinking it was a Maven proxy software problem.
But I realised it was more a problem with my virtualization stack (libvirt 0.7.5-5ubuntu27.19 / kvm ...
4
votes
2answers
239 views
How to prevent ubuntu installation from ejecting cd-rom?
I'm installing ubuntu server 10.04 over kvm switch. I have no physical access to the server. The server has ubuntu installation cd inserted. How to prevent setup from ejecting it after completion?
0
votes
1answer
644 views
apt-get update can not connect
i run a dedicated ubuntu 10.04 server.
i use kvm/libvirt/virsh to run a virtual machine that's also ubuntu 10.04.
i bridged the network (1 of 2 IPs is routed via NAT to the LAN, where my VM ...
2
votes
2answers
1k views
KVM on Ubuntu: console connection displays nothing
I've created a KVM virtual machine using the following command:
sudo ubuntu-vm-builder kvm oneiric \
--domain xpstage \
--dest xpstage \
--arch ...
-2
votes
2answers
144 views
Turning physical linux server into several virtual servers [closed]
I'd like to create several virtual servers (all running linux) on my physical server. All of them will be used as headless servers - ie. they'd be the equivalent of an EC2 instance but running on my ...
4
votes
1answer
445 views
How do I investigate an unresponsive KVM guest?
What steps can I take to investigate a KVM guest that freezes about once every two weeks? By "freezes", I mean there is no response when I try to connect with "ssh" or "virsh console". The host is ...
0
votes
1answer
65 views
Second vm not connecting to internet KVM
I cannot connect a second VM to the internet.
I have two VM's set up and running, the first vm can connect to the Internet fine, the second does not even get a ping through. They are both set up in ...
2
votes
1answer
404 views
shutdown kvm-guests without libvirt/virsh
We use kvm on ubuntu 10.4 as virtualisation-solution (we have bash-scripted the whole networking, subneting, starting of vms.....
Is there a way to shutdown a kvm-guest without the usage of ...
0
votes
2answers
123 views
Remote access to a KVM Ubuntu virtual server
I've just setup an ubuntu virtual server and everything seems to be working fine. I used KVM to get it working with a bridged network. I've given the virtual server a static ip address on my network.
...
0
votes
1answer
60 views
Which user should I run my KVM virtual machines under?
I'm about to start setting up some KVM-based virtual machines that will be used in a production system on an Ubuntu 10.04 LTS server and I'm not sure which user to run them as. In my tests, I ran them ...
2
votes
1answer
371 views
kvm, can't access guest from outside host
following ubuntu guide on kvm, I've a test server up and running at this ip address 192.168.0.210 (netmask 255.255.255.0).
The virtual machine (same as host ubuntu 11 server) use dhcp but has a ...
2
votes
1answer
230 views
Can ufw on a kvm host restrict traffic to guests?
I've set up a number of guests running on kvm on Ubuntu. Network access for the guests is via network bridge with br0 sitting on top of eth0. I have ufw running on the host machine and this is ...
1
vote
2answers
426 views
upstart pre-stop script
I have libvirt/KVM set up on my Ubuntu and before shutting down the machine I would like it to attempt shutting down the VM's using an ACPI poweroff (virsh shutdown), then I want it to stop shutdown ...
3
votes
3answers
474 views
Cloning a guest KVM instance with with a new IP address
I had an Ubuntu 10.4 VM running on another Ubuntu KVM host. I'd like to clone this VM but with a new IP address? I know that I would have to stop my VM, clone it, somehow give it a new IP address and ...
0
votes
1answer
80 views
Why am i limited to using Intrepid and lower as an Ubuntu VM
I've been trying to install KVM on Ubuntu 11 64bit now. I've been following the docs from the Ubuntu site and everything is going well. I've reached the point where I need to build my VM and it said ...
0
votes
2answers
67 views
Is it possible to configure two VMs on a Ubuntu KVM host with two static IPs
I have two static IPs, e.g 220.220.220.220 and 220.220.220.221. I have one network card on the host machine. Can i configure each VM to have it's own IP?
