A virtual machine (VM) is a guest Operating System running in a completely isolated environment within a normal host operating system. Modern virtual machines are implemented with either software emulation or hardware virtualization or (in most cases) both together.

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Run a GUI OS via a hypervisor from a Linux server terminal?

Is there a way to run a VM hypervisor, such as VirtualBox directly, from say, CentOS? Let's suppose that I want a high-efficiency server, but it can host guests with GUI-enabled OS's. Additionally, ...
2
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1answer
330 views

Mounting another VM's .vdi in VirtualBox

I have two VMs in VirtualBox. For exmaple, VM 1 runs Red Hat, and VM 2 runs Ubuntu. For the Red Hat VM I have redhat.vdi and redhat2.vdi, and for the Ubuntu VM I have ubuntu.vdi and unbuntu2.vdi. ...
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1answer
741 views

How may I Obtain a RHEL/CentOS in OVA Format?

My company has an internal cloud that provisions VMs either in an OpenStack (KVM) or a VMware (ESX) hypervisor. It already provides RHEL 6.4 on the KVM, but I've used up the max number of VMs from ...
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0answers
86 views

Why PowerVM LPAR CPU utilization is negative

For a specific case I compute an PowerVM LPAR CPU utilization to be a large number less than zero. I am fetching the lpar sample event using: lslparutil -r lpar -m P750 --filter "lpar_names=i5lp5" ...
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2answers
484 views

Need IP for my Virtual Machine

I want to scp to my virtual machine (CentOS 6) from my Windows 8 machine. I have installed VMPlayer and installed CentOS 6 on my machine. I have enabled Bridged adapter setting, but I still can't see ...
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3answers
251 views

Different ARP results between host and virtual machine

Recently, using VMWare Player, I have configured a Linux virtual machine on a Windows host. I set the network adapter to be a bridged network with the Replicate option checked. The IP address was on ...
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2answers
66 views

Virtualize Windows on Fedora and let Windows see real hardware

My question may be weird. I want to know if there is some virtual machine that lets me install Windows 7 under Linux and lets Windows use, as a virtual device, the same device that is really installed ...
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1answer
20 views

where to put some script to run before VM Suspend?

I have run one shell script before the vm suspend. How to do this? Where to put this shell script so that it will run before the VM suspend .
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1answer
2k views

Installing Android-x86 on a USB (not creating a Live USB)?

I want to carry around an Android OS install on a USB so I can have a Google Authenticator with me everywhere I go since I don't own any mobile devices. The idea being that I can run Android through ...
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1answer
106 views

How to execute some shell script before VM suspend?

I have created one Centos VM. And I have created some IP aliases. Once I suspend and resume the VM my IP aliases are all going down. So I just want to capture the aliases address before suspend and ...
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2answers
265 views

How can I fill the free space with zeroes in Ubuntu 12.04 (ext4)?

I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC. It is situated on the dynamic virtual hard disk (2TB). The size of this vhd is 360 GB. But the real size is about ...
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2answers
124 views

Install OpenSUSE 12.3 on a Virtual Machine

I am trying to install OpenSUSE 12.3 onto a (VirtualBox, on Windows) virtual machine. I have tried both the Net Install (-NET) and LiveCD (Gnome) installs. The installations proceed almost to ...
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1answer
293 views

How to make use of a real PCI modem in a Virtual Machine?

Is there a way where I can use my PCI modem in a virtual machine on an ubuntu 12.04 host box? I have installed Ubuntu 12.04 on the host and I want to use my PCI modem on a guest virtual machine. Can ...
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1answer
193 views

How to use redobackup without free partition

I had a spare 250GB drive a while ago from an old Windows Vista computer. There wasn't much data on the drive. I wanted to use it for a new OS in my computer, and I was in a rush to use it, so I ...
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1answer
283 views

Starting rng-tools in SLES guest in VirtualBox

I am trying to start rng-tools in a SLES 11 SP3 installation inside of VirtualBox. vagrant@sles11sp3x64:~> uname -a Linux sles11sp3x64 3.0.93-0.8-default #1 SMP Tue Aug 27 08:44:18 UTC 2013 ...
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1answer
45 views

Reach service on VM with private address

I have this configuration: source: https://www.lucidchart.com/publicSegments/view/5256a1e5-afb0-4c7a-96fa-35750a00527d/image.png Basically, I have to reach a service which is running on the virtual ...
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2answers
4k views

Copy-paste between Hyper-V guest and host

My computer runs Windows Server 2008 R2. It hosts a Hyper-V virtual machine running Ubuntu 12.04 as the guest OS. I want to copy text from Ubuntu and paste this text in Windows (and copy text in ...
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0answers
107 views

fstab doesn't mount after boot of a virtual machine

I created virtual machine out of WordPress turnkey appliance (I believe it's based on Ubuntu) inside Virtual Box. I am able to mount a folder on turnkey from the host (Windows7) manually. So I added ...
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1answer
185 views

Can't boot properly after moving all files off then back on my VM drive

I have created an Ubuntu 12.04 32-bit VM in VirtualBox with a .vdi disk. I then mount this disk with qemu-nbd and move all the files off it; then back onto it. When I boot the VM again I get varying ...
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1answer
559 views

Measuring CPU %steal on VMware and Hyper-V hypervisors

For Xen Linux guests, %steal time is readily available via top and other utilities. Is it possible to get this and related metrics from within a Linux guest when running a non-Xen hypervisor such as ...
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2answers
1k views

How to Add Extra Disks on KVM based VM

I installed Redhat 6.4 on KVM Server. Right Now there is only One Disk /dev/vda. Now I need to add extra Disk like /dev/vdb I tried adding New Volume but it is not showing when I do fdisk -l How to ...
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1answer
443 views

Can virtfs/9p be used as root file system?

Is it possible to use a folder shared from the host to the guest via virtfs/9p as the root file system inside the guest? Loosely related to my previous question: Can virtfs/9p be used to share the ...
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1answer
208 views

Can virtfs/9p be used to share the same host folder with multiple guests?

So far I have resorted to sharing host folders with the KVM guests via Samba. Now, reading up a bit on it, it appears that "VirtFS (Plan 9 folder sharing over Virtio - I/O virtualization framework)" ...
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0answers
75 views

PowerVM lpar specific cpu/mem info

I want to get the CPU and memory allocation information from lpars of PowerVM through HMC. I have used lshwres -r proc -m <ms> --level lpar lssyscfg -r proc -m <ms> The fields of ...
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0answers
281 views

In virtual machine manager, is there a way to add disk space to an existing disk?

I know that in virt-manager you can add RAM and processors to the virtual machine, but is there a way to increase the available disk space larger through the GUI? Edit: @slm was able to find the ...
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7answers
3k views

Easy way to determine virtualization technology

I have command line access to a Linux machine which may or may not be virtualized. I want to determine what kind of virtualization technology it runs on, if any (VMWare, VirtualBox, KVM, OpenVZ, Xen, ...
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3answers
646 views

Boot my kernel in a Virtual Machine?

I'm learning now how to compile and boot linux kernels. Is there a way to boot kernels in a virtual machine, rather than messing my system? I use VMWare Workstation on Windows 8. Can I use that to ...
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0answers
39 views

Install Fedora/Ubuntu from its source code using virtual box

How can I compile Fedora/Ubuntu from its source code by using some kind of virtual machine? Actually I want to trace some signals; especially termination signals SIGTERM SIGINT and SIGKILL. ...
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1answer
715 views

Can't do chown/chgrp/chmod on shared dir in VirtualBox Ubuntu 10.04

I installed Guest Additions on my Ubuntu 10.04 VM running out of VirtualBox in order to enable directory sharing, following these instructions. Set the shared folder in the VirtualBox GUI and it ...
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1answer
351 views

Can VirtualBox return IP address for launched VM?

I would like to start my VM from the command line and without the GUI using the following command: VBoxManage startvm <MY_VM> --type headless and the SSH into it from the next prompt. The ...
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2answers
423 views

Is there a convenient small Unix virtual machine I can install as an Android app?

Ubuntu for Android seems to be missing in action. I'm travelling tomorrow and I need to take a basic Linux machine with me. I'd rather just take my tablet than a laptop. So is there a reasonable ...
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2answers
894 views

Physical host or VM [duplicate]

Is there a way to tell whether a host is a physical one or a VM and which virtual container it is running out of (e.g. VirtualBox or VMWare)? I was wondering if that info may be in /etc some place.
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1answer
1k views

Guest addition already installed in Linux mint

I have recently installed Linux Mint 14 on a VirtualBox VM and it seems that guest additions are already installed. I did not install them. How is this possible? Does Linux Mint know that it is ...
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2answers
317 views

Solaris11: Alternative to xVM Hypervisor?

AFAIK, support for the xVM Hypervisor - basically Xen - has been dropped in Solaris 11. Is there an alternative/replacement for it? How does it compare to Xen? Obviously there is zones if you want ...
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2answers
1k views

Where do I find versions of Turnkey Linux made to run on 32-bit VirtualBox?

What I found on the main site turnkeylinux.org/core is the file turnkey-core-12.1-squeeze-amd64-vmdk.zip which I suppose is for 64-bit OSes (corrections accepted..).
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1answer
1k views

sendmail through virtual machine

I am successfully performing some very basic SMTP sending in my machine with a basic Python script: .... things ... try: smtpObj = smtplib.SMTP('localhost') smtpObj.sendmail(sender, recievers, ...
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1answer
245 views

Virtualbox: Find Windows host DNS name on Debian guest

I have a Debian Squeeze guest system running on a Windows 7 Professional host, a notebook computer. As a web developer, I need to mount my Windows project root folder into the Debian system. ...
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2answers
1k views

CentOS VPS - Pointing my Domain name to the VPS static IP

I am a Linux Newbie. I have a VPS with CentOS installed at my ISP and I am managing it remotely. Up to this point, I have had shared webhosting on a Linux machine at my ISP where I had CPANEL ...
4
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1answer
338 views

Convert Debian Live USB persistent filesystem to a standalone installation

How would I convert a persistent filesystem (live-rw) from a Debian Live USB to a standalone, bootable installation that can be run on a VM? What I've tried Chrooting and installing a bootloader ...
0
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1answer
50 views

Is there any way to deploy an virtual machine software via command line on centos3

I have a centos3 based legacy distribution with all the desktop environment removed. I have only access via command line. I am now asked to run a centos 6.1 distribution on a virtual machine on this ...
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2answers
2k views

cannot create symbolic link on CentOS 5.6 - File exists error

I am trying to setup a symbolic link on my CentOS 5.6 machine to point dev_crmpicco/ to ~/vhosts/dev/dev_crmpicco/web/ I am using the following command: [crmpicco@devel dev]$ ln -s ...
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0answers
95 views

omap3530/3630 emulation on QEMU for overo and beagle machines

On QEMU's source code for beagle and overo I can see that the cpu emulated is the OMAP3430. I will like to know if it's a way to make QEMU emulate OMAP3530/3630 cpu's for those machines? On bealge : ...
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1answer
249 views

Samba daemon hammering CPU on CentOS 5.6 VM on bootup

I have a problem where my Centos 5.6 VM is running very slow on my Win7 machine, and looking at top I can see that the Samba daemon smbd is sitting at the top of the list hitting the CPU big time, ...
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1answer
500 views

Need to configure network card manually after each reboot

I am using SUSE Linux Enterprise Server 11 (x86_64) as VM Ware virtual machine (that was cloned). Not sure why but network card cannot be configured via yast2. If I go to edit and hit enter Yast will ...
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2answers
466 views

ttyO ports do not have the good port address on QEMU 1.4.0 running image for beagleboard-xm

I'm running an Linux Image (kernel 3.2.8) for beagleboard-xm on QEMU's 1.4.0 emulator Ubuntu distribution for 13.04. My image is created using Buildroot beagle_defconfig. I added some pkgs to be able ...
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0answers
71 views

How to start a GUI program in a VM with PHP

I have an Ubuntu 12.04 VM running on my online server where there is no display attached. I want to start Teamviewer there on that VM to get graphical access to that server. I guess I have to give ...
4
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1answer
2k views

ssh-agent forwarding for a Vagrant VM

I'm currently looking at setting up a Vagrant environment on my Mac machine, so that I can run vagrant up and it will then install rbenv and ruby and all I need. Then I have a Bash script that will ...
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2answers
237 views

Terminal-based (non GUI) virtual-computer program?

Are there any terminal-based (ie. non-GUI) virtual-computer programs out there? I've been using programs like VirtualBox and QEMU, but they're obviously GUI-based... I was hoping for a virtual PC ...
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1answer
322 views

Upgrading Debian Squeeze to Wheezy - Should updatedb.conf be kept or replaced?

A similar question to Upgrading Debian Squeeze To Wheezy - Should conf' files be kept or replaced?, but in my case it concerns a different conf file and I am not on Linode. I am upgrading a VMWare ...
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3answers
255 views

NFS server on qemu guest

I need to know how I can mount block devices, placed on a qemu guest system, from host. So in this case we have NFS server placed on guest system and NFS client on the host's side. There are a lot ...