A virtual machine is an emulation of a guest operating system, running on virtualized hardware within a host operating system.

learn more… | top users | synonyms (2)

1
vote
1answer
184 views

What is a virtual optical disk file and how do you create one?

I am trying to create a virtual machine using virtualBox and I have finished the whole process of specifying the size, the name, etc. However, when I try to power on the machine it tells me: ...
0
votes
1answer
35 views

How can I create a 64-bit virtual network with VirtualBox? [duplicate]

I can't find an option to install a 64-bit OS on VirtualBox. I have a 64-bit host, but I can't find an option to make a 64-bit guest, only 32-bit. Help please?
0
votes
1answer
25 views

Unable to live boot most Linux distros on VirtualBox

The host OS is Windows 7 and the machine supports virtualization which I have enabled in BIOS. (I can confirm it works because without virtualization enabled in BIOS VBox does not show 64 bit OS ...
2
votes
1answer
30 views

How do I get access to the file system of a stopped AWS instance (virtual machine)?

Issue: I have an AWS t2.micro (virtual machine) instance (name:webserver) set up with Ubuntu 14.04 LTS. The instance is unusable due to a configuration file that I edited improperly and saved. I ...
2
votes
3answers
47 views

Accidentally deleted all kernel files from /boot

I have a virtual machine (VM) running Ubuntu Server 14.04. I access the VM remotely using putty. Recently I came into a problem when /boot was 100% full. I came across numerous articles which ...
0
votes
0answers
36 views

How to execute command on host machine in Virtualbox

My guest machine is Ubuntu 14.04 and my host machine is Windows 8.1. I need to execute a command coming from Linuxmachine on Windows. What is the best idea to do that? If my host was also Linux, I ...
-2
votes
1answer
29 views

Virtual Machine on a flashdrive [closed]

Is it a good idea to have a virtual machine in a flash drive? Since operating systems frequently read & write, would this degrade the flash drive very quickly? Right now, I have a virtual machine ...
0
votes
0answers
38 views

What are the drawbacks of enabling Intel Virtualization Technology?

I want to start using virtual machines, and I will eventually need to enable Intel Virtualization Technology. I know how to do it, but the last time I enabled it the boot time seemed to increase ...
0
votes
2answers
30 views

Mounting non-usb devices on Virtualbox VM

I have Windows 7 running on bare metal. I have a Haupage TV tuner card installed on there that Win 7 detects and runs smoothly. I have now installed Vitualbox on Win7, and created a Ubuntu VM. I ...
0
votes
0answers
22 views

Can't access host-only network when on two interfaces

I'm trying to use a host-only connection with my VirtualBox VM. My VM is set up and can ping the host (192.168.56.101) on vboxnet0. If I disconnect the host from my local network (internet access) I ...
1
vote
0answers
9 views

Export from xen to azure

I want to move a Ubuntu Server VM from Xen to Azure Cloud. I exported the VM to a xva format. I converted it to ovf using Citrix XenConvertor and I obtained the vhd file. In Azure I created a disk ...
1
vote
1answer
96 views

modprobe vmhgfs gives — FATAL: Module vmhgfs not found

I'm trying to get shared folders working in VMware Player 6. My host is a Windows 7 box, and the VM guest is Ubuntu 14.x I'm trying to share an external drive on my Windows machine (F:) with my ...
0
votes
0answers
18 views

High resolution option not present in Win-7 virtual machine at Mac Retina

I have a 13" inch Mac Retina which has high resolution. I have installed Virtual Box then used windows-7 .iso file to configure windows-7 virtual machine. While the native resolution of Mac Retina is ...
2
votes
1answer
38 views

Virtualize Windows 8.1 using a product key used for the real installation on the same computer [closed]

I have bought new SSD, then I've installed Windows 8.1 with a given product key. Now I would create a new virtual machine with Windows 8.1 as testing environment: could I install the virtual OS using ...
0
votes
2answers
117 views

Why do the RAM requirements for a Visual Studio in a virtual machine leave so little for the host that i'd expect would require more? [duplicate]

https://www.visualstudio.com/en-us/downloads/visual-studio-2015-system-requirements-vs.aspx 1 GB of RAM (1.5 GB if running on a virtual machine) Does it mean the host requires 1.5GB and will ...
0
votes
1answer
29 views

rm -rf / on a virtual machine?

So, this is probably a stupid question, but I'm genuinely interested. Would it be safe to recursively delete everything on a virtual machine from a command line, just for fun? I'd assume so, given ...
0
votes
1answer
68 views

Ubuntu 14.04 guest cannot detect second virtualbox monitor

I have an Ubuntu 14.04 (64bit) VirtualBox setup on VirtualBox 4.3.30. As I understand it, this setup should permit the use of Dual Monitors by the guest OS. The host OS is Windows 7. I have the guest ...
0
votes
0answers
22 views

VirtualBox vdi cannot be read (after clone and copy)

I am trying to run a Windows XP VM using Oracle's VirtualBox. On my Windows 8.1 PC (at home) this works great. Then I: * cloned the VM to a 64Gb SD card (formatted with the exFAT file system, if ...
1
vote
3answers
64 views

Virtual Machine to run 32-bit Windows?

I'm trying to run an old game, and oddly the expansion packs to the game only install on 32-bit Windows. I have 64-bit Windows 7, and it won't even let me attempt to install them. If I install a ...
2
votes
4answers
692 views

Unable to launch Andyroid virtual machine

When I try to launch an Andyroid virtual machine I get the following message unable to launch vm process: Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE) (0x-8fffbffb)! Here is a print ...
-1
votes
1answer
23 views

Is it possible to use VPN only for virtual machine?

I want to use a VPN only for some applications, if I use a virtual machine with a VPN configured on it, my entire pc will use that VPN or only my virtual machine will use that VPN? Another question. ...
0
votes
0answers
16 views

KVM inserts CD ROM at reboot even if kickstart has “reboot --eject”

When installing a VM on KVM host with a kcikstart profile that specifies "reboot --eject" option, on one specific host in our lab, the CD is re-mounted and the installation starts again. For another ...
0
votes
0answers
5 views

Fault Tolerance in Virtualized Servers

I have read about virtualization though I don't have real life experience. One of the ways to achieve is by installing Hypervisor in a server machine and have management software in admin's machine to ...
0
votes
0answers
88 views

VMWare copy/paste not working, running Windows 8.1 in Ubuntu 14.04

I can't get copy/paste to work in VMWare between my guest and host boxes. My host is Ubuntu 14.04 and VMWare is running Windows 8.1. I'm using VMWare Player version 7.1.2 build-2780323. I've already ...
0
votes
0answers
100 views

How to switch between VM guest and host in Windows 10 with single keyboard shortcut?

I'm looking for simple solution for switching between host and guest on Windows 10 (build 10240) with VirtualBox (5.x). Let's say I have two virtual desktops open, one containing VM guest window in ...
0
votes
0answers
17 views

VPN on guest machine only

I have a Windows 2008 R2 server that does a fair bit of media transcoding, and serves the house via Plex server. I am looking at making a VM guest (windows 7 or 8) that will have a VPN client ...
1
vote
2answers
49 views

How can I install 4 VMs on my Windows 7 PC?

I want to install 4 VM on my Windows 7 PC: 1 Linux kali 1 Windows 7 1 Windows 8 1 Windows Server 2012 I've read that I can't use hyper V, because it's not available on windows 7. VirtualBox seems ...
0
votes
0answers
33 views

Virtualized Mac OS sees only 7MB of VRAM

I run into a problem with virtualized Mac OS X 10.10. My virutal machine sees only 7MB of video memory, but I set 128 MB in VirtualBox configuration. I've tested on VirtualBox 4.3.10 and 5.0 and ...
0
votes
1answer
23 views

Access files in virtual machine from virtual disk files?

I was using vmware workstation, but I don't have a valid key anymore. I have files and data in there that I need and would prefer not to pay $250 to get a new license. Is there a way to access my vm ...
0
votes
1answer
11 views

What NIC is connected to what network in VMware VM

I have a requirement to create a VMware VM that must be connected to multiple networks (one vNIC for each network). IPs are assigned statically and are supplied via OVF environment properties. The IPs ...
0
votes
2answers
94 views

Windows 2012 R2 Server Core reduced/minimum RAM usage (for VMs)

The minimum requirement for Server 2012 is 512MB of RAM. But since server core doesn't need GUI, is it possible to run the core with even less RAM? If so, what's the minimum? I plan on running it on ...
1
vote
0answers
21 views

“Borrow Computer”/“Log in to VM” button on Windows Login screen?

My last two workplaces have had a button on the Windows 7 login screen marked "Borrow" or "Use Another Computer". This button allows any user to connect either to their own desktop machine, or to a ...
0
votes
4answers
254 views

pros and cons of running an identical virtual machine guest OS as the host operating system [closed]

After researching a little bit on this forum, I found a couple of answers to this, but most of them were related to licensing issues. Here I am curious to know the advantages and disadvantages of ...
0
votes
0answers
26 views

Virtualbox - Two different screen orientations for Ubuntu VM

I have an Ubuntu (15.04) VM running on a Windows 8.1 host in a two monitor configuration. At times, when I'm reading a lot of documents, I like to rotate one of the screens to be in portrait mode to ...
0
votes
1answer
228 views

Can I fix corrupted vmdk image? VERR_VD_VMDK_INVALID_HEADER

I suffered host crash when running guest OS with VirtualBox. Now the VM won't start and complain that: Could not open them medium '[file.vmdk]` VMDK: inconsistency between grain table and backup ...
0
votes
0answers
82 views

Virtualbox very very slow with ubuntu 15

Windows 8.1 is host, ubuntu 15 is guest. Starting firefox in ubuntu takes 50 seconds. Add another 30 seconds until I can actually start typing into the address bar. The ram consumption is only 300 mb ...
2
votes
1answer
50 views

Stop Ubuntu VM Stuttering

I am running Ubuntu 14.04 as a VMWare Workstation Virtual Machine inside Windows 8.1. Windows is the host, Ubuntu the guest. As it stands, my Ubuntu VM keeps stuttering. Music keeps stuttering, but, ...
0
votes
1answer
22 views

Why does my virtual machine get so slow?

What could cause a virtual machine to get really slow? I'm running vmware workstation with ubuntu 14.04 on a computer with quad core i7 processor, 8 GB of RAM and a decent hard drive (not ssd). I ...
0
votes
1answer
55 views

Why would I want a custom Docker host VM instead of TinyCore Linux in boot2docker?

I've read about Docker, boot2docker and Vagrant's Docker provider and I guess I have a pretty firm grasp of how all of this works. However, there is still one thing I haven't quite figured out yet. ...
-1
votes
1answer
33 views

SheepShaver problems [closed]

I have this problem with SheepShaver Macintosh emulator. I did it with Basilisk II open source Macintosh Emulator which was a success, but it won't work the same way with SheepShaver, so I had error ...
0
votes
2answers
48 views

Can virtual box be accessed while mac in sleep?

I have a question regarding virtual box on my iMac, basically i've created a VM and i'm running there windows. I have made it accessible from internet etc etc, so it is ready, but i'm curious => if i ...
0
votes
1answer
41 views

What is VT-x? Why it is not enabled in few machine by default

While installing Virtual machine I am getting error that VT-x is not enabled so I am not able to continue install Virtual OS. So What is VT-x? How to enable it? By enabling will cause performance ...
0
votes
1answer
26 views

Openssh installed still Putty is not working properly

I have setup 2 virtual systems of ubuntu using VMware player7.1.My physical system is running on Win7. Both the VMs are configured in Bridged Network mode. I am using wifi router in my home. I am able ...
0
votes
0answers
14 views

debian create wlan hotspot: Also from a VM?

I am looking for a way to create a WLAN hotspot from a debian system. I already found some tutorials. EG: hotspotd youtube video But: They are not working. A hotspot is created but I cannot connect ...
0
votes
0answers
53 views

XenServer - Use OpenVSwitch to mirror traffic from one VM to another

XenServer 6.5 SP1 & OpenVSwitch 2.1.3 I need to mirror traffic from one VM to another. I have enabled promiscuous mode on the PIF and VIF. Using the following command, I can mirror the traffic as ...
0
votes
0answers
55 views

Connect to a virtual machine from host as if it was another network machine

I have a virtual machine on Oracle VirtualBox, hosting Windows 8.1. My desktop is running Windows 10. I would like to access the virtual machine from the host, as if it was another machine on the ...
0
votes
1answer
79 views

Virtualbox: deleted snapshot, vm won't boot

The problem I accidentally deleted the snapshot file located at <virtualbox-folder>/vms/<vm-name>/Snapshots. When I try to start the VM (which the .vdi file is intact), the following ...
0
votes
0answers
21 views

Failed to extend… Read only Filesystem VirtualBox

I copied a livedisk fedora16 to my local Ubuntu 14.04 using cat I then created a virtual machine using virtual box with the controller:ide pointing to the .iso file this cat operation produced. The ...
0
votes
0answers
43 views

qemu virtual machine send desktop switching command to host

I would like to set up qemu/virt-manager/spice so that I can run a VM full-screen on its own KDE virtual desktop. I have ctrl-alt-{up,down} set up as desktop switching shortcuts, but I need a way to ...
0
votes
0answers
31 views

SSH agent forwarding in Vagrant

My workflow consists of running at least two Vagrant VMs at the same time - one of them acts as a web server running the application and the other is used for local development (vagrant ssh => ...