Virtualization is the process of using software to create a virtual resource of something; usually, it refers to hardware virtualization, the act of running an operating system (referred to as guest) inside an host system.

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How to find VM OS installation media file in the Proxmox Web Interface?

I have installed Proxmox and wanted to create a VM by using the Proxmox web interface GUI (now the version is 2.0-38/af81df02) However I have problem to find my Guest VM OS installation CD/DVD ISO ...
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0answers
612 views

Debian VPS, no loop devices present, modprobe fails

After acquiring a new virtual Debian squeeze I ran into a problem regarding loop devices. My plan was to set up an encrypted FS in a regular file and mount it. Unfortunately I can't do that since ...
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7answers
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Should LVM partitions be used in virtual machine images?

Should LVM be used for the partitions when creating VM images (e.g., KVM images)? It seems like it adds complexity if you want to, say, mount a qcow2 image in the host if the image has LVM partitions. ...
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1answer
692 views

Any better alternative to chroot on an OpenVZ VPS?

Are there any better alternative to chroot environment? I'm thinking about running nginx on a jailed environment. BTW, I'm on OpenVZ VPS, so modifying the Kernel is a no-no. (I think that prevents ...
2
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1answer
190 views

Destroying KVM first try virtual machine

I'm trying to understand how KVM works, working on ubuntu 10.04 server. I created one with sudo ubuntu-vm-builder kvm lucid --arch 'amd64' --mem '512' --rootsize '10248' --swapsize '1024' ...
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4answers
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Lightweight isolated linux environment

I want an isolated (guest) Linux environment on my computer that I can mess up without worrying about the host. E.g. install a lot of stuff from source without package management, pollute environment ...
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3answers
523 views

Problem with mount namespaces under Fedora

I've run into an odd problem regarding mount namespaces on Linux. I have two systems, both X86_64 running kernel 3.2.3-2 under Fedora 16. I am attempting to mount a tmpfs filesystem in a child ...
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0answers
29 views

How to access the data stored in guest operating system(i.e Virtual machine) from Host system [duplicate]

Possible Duplicate: Share memory between a virtual machine and the host I wanted to access the data stored in virtual machine from my host machine. I know that each VirtualMachine will have ...
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6answers
301 views

How can I be sure that my server is not virtualised?

How can I make sure that my Linux server is running on a non-virtualised real box? This is the scenario I am thinking of: I install some distro on a rack-mounted server, I rent some rack space on ...
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2answers
3k views

Fast X for LXC guest on localhost?

How can I run X apps inside an LXC container efficiently? ssh -Y guest is too slow - there is no graphics acceleration with ssh -Y - everything has to travel over the virtual network with the ...
2
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1answer
86 views

Access times for different partitions on same hard disk

I have partitions, /dev/sda1 and /dev/sda2. / is mounted on /dev/sda1, while all other data is on sda2 which has more size allocated to it. I want to save the virtual machine images (VirtualBox ...
8
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1answer
642 views

Lightweight virtualization on Linux with user isolation

What Linux-on-Linux virtualization technologies provide user isolation? Specifically, I want root in the virtual machine not to have any privilege on the host. This was not the case for LXC, but was ...
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8answers
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WebGUI for Virtualization?

Are there any virtualizations that can be accessed via a WebGUI too? I mean the administration part is enough on a terminal, but we need a virtualization/webgui solution for "customers". So that ...
2
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1answer
4k views

How to check if VT-X is enabled in BIOS?

How to check if VT-X is enabled in BIOS? I have vmx in CPU flags, and no access to the BIOS. (I need to install a KVM VM on RedHat Enterprise Linux 6.1).
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2answers
173 views

A reliable and free way to use Linux on Windows, multiprocessor and x86_64

I need a reliable and free virtual machine to run Linux on Windows, multiprocessor and x86_64. I need a good environment to compile and run ffmpeg and libvpx. I have used Mint Debian under Virtual ...
2
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1answer
558 views

Do I need hardware support for KVM for virtio paravirtualisation

Unfortunately I need to run virtual system on the machine without hardware support for visualisation. From kvm page I read that kvm is needed however it is not mentioned whether they mean the kernel ...
2
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0answers
145 views

VirtualBox appliance import locks up system

I have a Windows Vista x64 appliance that I am trying to import into the Open Source Edition of VirtualBox on Linux Mint 11 x86-64. The ovf file is 21.3 GB in size. The problem I am having is that ...
3
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1answer
236 views

Custom live distro - ways to detect it is running inside virtual machine (or prevent running in VM altogether)

I am creating a custom live distro that will be a specialist work environment for those of my employees that are on the road. I am looking for ways to detect or, ideally, prevent my live distro from ...
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2answers
3k views

Mouting a kvm qemu disk image with multiple partitions

I am trying to mount a KVM-qemu disk image with this command: sudo mount -o loop,offset=32256 centos6.img /mnt/centos6. But it shows this error: you must specify filesystem type. As I have more ...
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2answers
1k views

Installing Freebsd as guest OS on kvm without using VNC

I want to run Freebsd as a guest OS on kVM running on Ubuntu server 10.04. All howtos mention VNC as a necessity to start and finish the installation process. Can I install freebsd on kVM without ...
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1answer
682 views

VirtualBox disk performance?

This option was newly added to latest version of VBox , googled a lot , seems no much information was revealed , could anyone please help me pick one disk format ? Which one owns better performance ...
2
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1answer
367 views

Will VMX cpu flags increase the speed of virtual machine software , like VirtualBox?

On some CPUs, if I run grep vmx /proc/cpuinfo, I can see a vmx flag under the features entry. Will this feature speed up virtual machine software like VirtualBox?
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2answers
3k views

Are there any virtualization solutions for OpenBSD that aren't from ports?

I'm searching for a virtualization solutions for an OpenBSD host and a CentOS guest. What are my options? I'm searching for one that doesn't use packages from ports. Are there any?
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3answers
548 views

Can libvirt check if virtual machine is fully booted? Can another tool?

I currently have small VM to do certain tests (it has multiple benefits - like testing on another distribution, Fedora 15, as well as running make distcheck without the problem of polluting /). ...
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3answers
29k views

Does LVM impact performance?

I have to migrate a few servers to Linux, and one important aspect that I need to evaluate is that my new host system must have elastic storage capacity. Naturally, doing some basic research, I came ...