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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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. ...
1
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0answers
7 views

Setting umask of libvirt/virt-manager for proper permissions in a directory shared by host and guest

I'm attempting to create a directory that is fully available to both the host and guest systems of a virt-manager/libvirt/QEMU/KVM virtual machine, with read, write and execute permissions for ...
4
votes
5answers
3k views

Share memory between a virtual machine and the host

Through shmget and shmat, I am able to access the data stored in one program from another program. Here's the gist of the code: key=ftok("shared.c",'c'); shmid=shmget(key,1024,0644|IPC_CREAT); ...
5
votes
1answer
4k views

docker - how to run x desktop in a container?

I'm trying to set up my Linux machine to run multiple guest OSes, one of those being a Windows VM, and another a Linux container. The goal here is to prevent me from messing up the host system, while ...
1
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0answers
17 views

Why I can not update Linux core in dockers?

When I run apt-get update && apt-get upgrade in container, the core is not starting to update. Yes, I know, containers use the kernel of host machine and can not execute some ...
1
vote
3answers
66 views

Process scheduling data on linux

I am doing a project on OS and require the process scheduling data for an operating system. The data has to include the list of all processes in short-term-scheduler and long-term-scheduler along with ...
0
votes
1answer
16 views

How to add public key to QCOW2 image via virt-sysprep

I am trying to add my public key to the root account on a qcow2 disk image (CentOS 7 Cloud Image). The documentation from virt-sysprep says that it supports adding keys, but I cannot seem to ...
1
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0answers
19 views

Setting up bridged adapter for Arch guest, Windows host [closed]

I've tried many things that I've found online but I'm stumped. I'm using VirtualBox, my guest OS is Arch, kernel version 4.4.1-2, my host is Windows 10. When I set it to have NAT adapter, I get it ...
1
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1answer
87 views

HP EliteBook 8530p wifi problem (hard blocked) in Qubes OS

I just installed Qubes OS on an old HP EliteBook 8530p and cannot connect to the internet with wireless. This laptop has a physical wireless switch that must be toggled 'on' for the wireless to ...
5
votes
1answer
2k views

One host, two virtual machines that cannot ping each other. How to solve

We have Virtual Machines operating within the KVM environment. We setup one as a dev server running Apache etc., and the other as a Windows development environment. The two environments are setup ...
6
votes
3answers
3k views

How to create user cgroups with systemd

I use unprivileged lxc containers in Arch Linux. Here are the basic system infos: [chb@conventiont ~]$ uname -a Linux conventiont 3.17.4-Chb #1 SMP PREEMPT Fri Nov 28 12:39:54 UTC 2014 x86_64 ...
0
votes
1answer
28 views

as small as possible linux for virtual machine with firefox 37 and up [closed]

I have unused machine with Intel T5500 (2cores), 2GB RAM. Now need to pick as small as possible linux distro for running as virtual machine. I just need to save as much CPU as possible and be able to ...
0
votes
0answers
27 views

Virtual CPU utilization(multi core CPU)- Identify the process

I am in a road block and trying to understand the below. Red hat Linux has been installed in a Intel Xeon CPU. We have a 6 core virtual CPU's. I am trying to find out which job is consuming more of ...
-1
votes
1answer
46 views

Sharing a harddisk partition with a linux VM on virtualbox [closed]

Let me just paint the picture so you can all understand. My host OS is Windows 10. I have virtualbox installed on my windows OS, and in virtualbox I have an kali distro running. This distro and its ...
0
votes
2answers
706 views

Nested virtualization: run RHEVH inside KVM

I have laptop with 16GB RAM, trying to install Red Hat Enterprise Virtualization Hypervisor 3.3 on Virtual Machine Manager (KVM) based guest, but it gives error "Virtualization Hardware not found". ...
1
vote
2answers
1k views

Linux guest VM on mac host - Keyboard

I use a Mac as a development box, but am slowly transitioning to Linux. So I am spending the majority of my time in the Linux guest VM while working. But I still spend a fair amount of time in Mac ...
1
vote
0answers
10 views

Remotely use a platform device

I have a linux/android device with a certain hardware module (lets call this pc A), and a driver which uses the hardware as a platform device. Because of testing/os restrictions I'd like to be able ...
2
votes
2answers
3k views

How to enable WIFI on VMWare Fedora 12? (It's detecting and working fine on Windows 7)

I am new to Linux. I have Fedora 12 running on my VMware. I am unable to see any options to enable WIFI connection on Fedora. When I am accessing Internet through WIFI and its working perfectly fine ...
0
votes
1answer
26 views

What is the different between qcow2 format vs img format?

I want to back up a virtual machine image when I went to the directory where the images are stored /var/lib/libvirt/images/ I found one .img file, the rest were .qcow2, unlucky the virtual machine I ...
0
votes
2answers
38 views

Linux beginner. What OS should I use? [closed]

I recently started JAVA programming and I would like to start learning Linux programming simultaneously. I run a mac and I am planning to use Oracle VM VirtualBox to boot linux. What kind of Linux OS ...
0
votes
2answers
46 views

Running 64-bit Virtual Linux on any AMD/Intel Chip without VT-X support

Am I correct in assuming that a 32-bit virtual machine will run on any AMD/Intel chips, but if I want to run 64-bit. The host machine has to be VT-X enabled for AMD and Intel?
2
votes
1answer
166 views

Unable to use VMWare Workstation 12

I found myself unable to use the VMWare Workstation 12 trial on Debian Stretch as well as on Ubuntu 15.10. It installs just fine, but when I attempt to start it, it simply does nothing, no error or ...
0
votes
0answers
41 views

Unable to log in to any user accounts on a fresh install of Arch linux

Has anyone run into the issue of not being able to log into their root account after a fresh install of Arch Linux? I have tried setting the root password twice with the passwd command within the ...
0
votes
0answers
12 views

How to extend a windows volume on xen xm virtual server

I have inherited a Xen virtual server running debian 2.6.32. I have two windows hosts and one of them needs more disk space. I am thinking I should be able to rob a few GB from one of the windows ...
14
votes
11answers
13k views

Find out if the OS is running in a virtual environment

Is there any way to find out if the OS I'm running (actually installing) is running in a VMWare machine. I need to disable ntp settings if the automated install is done on a virtual machine but keep ...
0
votes
1answer
57 views

Ubuntu 15.10 Network Interfaces Name

I have just installed (fresh-installation) over VMware Workstation 10 an Ubuntu 15.10 64-bit virtual machine. Here, network interfaces names have been changed from 'ethX' to 'enXXXX'. My target is ...
1
vote
1answer
2k views

How to migrate from Proxmox to VMWare?

I am wondering how it is possible to migrate a full hardware VM in Proxmox (qemu) to a full hardware VM in VMWare (vmdk). I have been searching all over the place, and it seems almost impossible to ...
2
votes
1answer
1k 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 ...
1
vote
0answers
36 views

Rolling Release Kali Linux repositories

My question is whether anyone using Kali Linux installed in a Virtual Box or VMware, using Windows 10 as host operating system, has fully upgraded using the Rolling Release repositories and still had ...
0
votes
1answer
25 views

How to access KVM windows guest bios

How to access KVM windows guest bios: As I want to check guest bios virtuliazation options to enable nested virtuliazation, like vm inside vm.
1
vote
0answers
13 views

Create Network Interface That Redirects All Traffic to Actual Interface

I would like to create a network interface on my Arch Linux host for a VM to use (probably QEMU) so I can use iptables to firewall all network traffic in/out of the VM. The interface should send all ...
0
votes
1answer
32 views

Gnome Boxes: proper network configuration?

I've got a problem with Gnome Boxes: I've 2 machines, cloned 1 from other, with CentOS. Both machines get same IP addr on Gnome Boxes, so when I boot 2nd, 1st gets disconnected from network, and ...
1
vote
0answers
44 views

Why does NetworkManager explicitly support tun/tap devices?

Apparently NetworkManager recently gained support for macvlan interfaces. I notice it also supports macvtap, and the patch shows it already had some support for tun/tap devices. I thought tap ...
3
votes
1answer
83 views

List of VBox Machines Help?

So, I'm writing up a bash script to list out the VM's on my host, so I can make sure they are fired up when the host machine restarts... no problem here... my issue is getting the list of the ...
1
vote
1answer
2k views

Problem runing vmPlayer on fedora 21

First of all: Hello :) And then: After install the program and execute vmPlayer request the kernel headers to recompile it (I guess), after that vmP install the virtual network device, at this point ...
0
votes
1answer
18 views

Personal VM Station setup

In a previous question, i was looking for a way to execute VMware without installing a window manager or desktop environment. It proved difficult and I was curious if I am over complicating a solution ...
0
votes
1answer
1k views

VirtualBox guest cannot connect to USB drive, why not?

I have VirtualBox installed in Windows 8.1 and I am using it to launch and use CentOS 7 within VirtualBox. When I connect a USB drive to the computer, and right click over the icon circled in the ...
-1
votes
1answer
19 views

What are all the places http_proxy can be set?

I am trying to install a Centos 7 VM imported from another LAN environment. I have reconfigured the network in /etc/sysconfig/network-scripts/ifcfg-eth0. So now I can ssh to the machine and ping ...
1
vote
3answers
3k views

Having issues installing Kali Linux in Virtualbox

Trying to install Kali Linux in VB and it freezes. I believe I have the correct version and a good ISO because it comes up and allows me to navigate to "install" Once I press enter, all that happens ...
1
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0answers
65 views

Easiest *non-networking* method of communication between Linux host and Windows guest [closed]

I'm writing application software for Ubuntu which needs to communicate with another application running in a Windows Virtual Machine via Qemu on the same machine. I have full control over the source ...
0
votes
1answer
39 views

Power 7/8 - LPAR has null desired_proc and desired_mem

I am querying the HMC via commands to get the memory and cpu of the logical partitions. I am using the command lssyscfg. For many lpars which are in Running or Not Activated status, the command ...
0
votes
2answers
34 views

adding a virtual NIC to linux

I'm using CentOS 6.5 on oracle VirtualBox. In order to gain access to the internet, I've added a second network card connected to the physical network card of my pc. I rebooted the virtual server ...
1
vote
0answers
24 views

Virtualization and SCSI passthrough

Is there a way to do SCSI passthrough in a virtualized environnement under Linux (Linux being the host OS, and MacOSX being the guest OS) ? My goal is to drive a high end scanner for which no driver ...
1
vote
1answer
36 views

Light distro for VM-Ware guest running under Windows [closed]

I am forced to work under Windows but I need to access to a Linux environment for multi-platform programming tests. I need a fully functional desktop environment, ready to use, git, emacs and classic ...
0
votes
0answers
86 views

CentOS update from 7.1 to 7.2 with 2.6 OpenVZ kernel?

We are using CentOS 7.1: $ cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core) We deferred the 7.2 upgrade. It looks like it did not cause any problems so we are planning an upgrade. The ...
0
votes
0answers
18 views

Mouse not appearing for linux in virtual box on mac

I have just set up Kali linux on Virtualbox on my mac but when I try to enable the mouse on the virtual machine the cursor doesn't show and I'm not sure why i do see a message that states "You ...
1
vote
1answer
31 views

Access folder created in windows

Is it possible to access the folder created in windows, through unix operating system (Ubuntu 14.04 LTS) that is installed on a virtual machine on windows? If yes, what is the process to access the ...
27
votes
1answer
18k views

Linux LXC vs FreeBSD jail

Are there any notable differences between LXC (Linux containers) and FreeBSD's jails in terms of security, stability & performance? On first look, both approaches look very similar.
1
vote
1answer
60 views

Forward code.domain.com to specific server?

I have the classic Multiple Servers 1 IP trouble Except I am using ESXi (s1) to host to Server VMs (VM1, VM2). What I'm trying to accomplish is this: When Someone Goes to mydomain.com they get S1-VM1 ...
4
votes
3answers
2k views

Openstack for home cloud hosting

I am experimenting with a couple of technologies that I soon may have to use at work. So for now, I was thinking about duplicating the environment which I may have to create for my office at home so ...