Questions tagged [virtualization]

Virtualization is the process of using software to emulate an entire computer, in which "guest" operating systems can run.

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Benefits & Practicality of Virtual Machines [closed]

I have been living under a rock for the past 5 - 8 years, and am just now getting up to speed with virtualization, virtual machines and platforms like VMware or VirtualBox. I think I am starting to ...
1 vote
0 answers
77 views

How can I convert a domain controller account to local account for forensic analysis?

I am doing a forensic analysis of a Windows machine that has multiple local accounts but have a domain controller or active directory account. I can analyze the files of the user because the files are ...
0 votes
1 answer
671 views

Asus motherboard P5P43TD BIOS doesn't show Intel Virtualization Technology option

My motherboard is an Asus P5P43TD. It has default values loaded, and in the advanced menu in the CPU Configuration section, the Intel Virtualization (VT-x) option is not listed. I have upgraded and ...
0 votes
1 answer
42 views

What is better with virtual machines than with containers?

I've been reading up on Docker recently, and I see that there are plenty of reasons to use containerization instead of virtual machines. But what is not talked about as much (since containerization is ...
2 votes
3 answers
969 views

VMware null modem serial cable between virtual machines

Right now I am using some software to emulate a null modem serial cable on my Windows computer connected to itself. For development purposes I need to have a null modem connection to a linux computer ...
0 votes
1 answer
1k views

How to turn on promiscous mode in vmware?

I was told that in order to turn on promiscous mode in vmware, I need to do this: chmod a+rw /dev/vmnet* However, I am confused that there is an option in the vmfusion preference: Do I need to do ...
0 votes
1 answer
471 views

Windows Phone Emulator 8.0 needs SLAT to run?

After installing Visual Studio Ultimate 2013 with Update 2 I got this error message at the end of the installation, telling me that my computer does not support hardware virtualization, and that for ...
0 votes
2 answers
36 views

Is it possible to create a VM that survives outage of host? [closed]

This is just an academical question. Is there any way from technical point of view to setup virtualization subsystem that would be able to survive (VM's would be still accessible and fully ...
2 votes
3 answers
5k views

iptables syntax to forward remote desktop requests to a virtual machine on CentOS host

I can rdesktop into a VM running Windows XP hosted on my CentOS 5.4 machine from the hosting machine and work just fine using the private address (192.168.122.65), but I now need to allow remote ...
0 votes
3 answers
6k views

Hyper-V: Create virtual network, with LAN access, but without Internet access

I'm pretty paranoid when it comes to Windows 10's "data collecting". But I need to set up a Windows 10 VM on my build machine for development purposes. I basically want to be able to send files to ...
8 votes
3 answers
1k views

Linux for work, virtualized Windows for games?

Hello, as a freelance developer I recently found myself severely bound by the memory limit of 32-bit operating systems, and I need to upgrade to a 64-bit system in order to continue working ...
1 vote
1 answer
775 views

Why I can boot various kerel versions but not XEN kernel in grub2

I have successfully compiled XEN usigng following steps: wget http://bits.xensource.com/oss-xen/release/4.4.1/xen-4.4.1.tar.gz tar xzvf xen-4.4.1.tar.gz cd ./xen-4.4.1 export C_INCLUDE_PATH=/usr/...
0 votes
1 answer
106 views

Two Vagrant VMs caused network issues

It seems that when I make a new virtual machine, my private networks are not reachable from the host. I assigned different IP addresses to both, and included them in my /etc/hosts file, however I'm ...
1 vote
2 answers
6k views

Oracle virtualbox not allowing than one CPU - Hardware virtualization not available

I have the following hardware configuration: Processor: AMD FX-8120 (Zambezi) Board: ASUS M5A88-M OS : Windows 8.1 RAM : 4GB DDR3 I installed Genymotion which created a virtual machine for Android. ...
0 votes
0 answers
978 views

VirtualBox only creates new virtual hard disk when there is enough space on 'C' drive

There are >200GB free on my 'F' drive but it failed to create a fixed-size VHD with size = 200GB. Failed to create the hard disk storage C:\Users\abc\VirtualBox VMs\OSOS\OSOS.vhd. Could not ...
1 vote
0 answers
217 views

Linux (Mint 17.1) Video card's (R9 270x) sound is claimed by pci stub but the GPU isn't

So I'm trying to setup a gaming VM with on Linux Mint via KVM and VFIO. I've added the ID's of both the sound and the actual GPU but only the sound is getting claimed by stub. When I run dmesg | grep ...
1 vote
2 answers
2k views

Does a computer emulator exist for specific system hardware configurations?

Not your typical virtual machine! I’m looking for a way to emulate a computer as close as possible. Virtualization software like QEMU, VirtualBox and VMware or even EXSi give me the ability to ...
0 votes
2 answers
393 views

(Virtual Machine) KVM/QEMU Distributed Resources

How do large VM hosting establishments offer Terabytes of RAM? Do they just use really large SWAP files? (over a Network FS of some type)? Or is it that they really have hosts/machines/computers ...
1 vote
1 answer
727 views

Are virtual machine resources available to the host?

I know that when I dedicate HD space to the VM that it can’t be accessed by the host OS, but what about RAM and CPU cores/threads? I always thought that if I dedicate 2 cores and 8 GB of RAM to a VM ...
0 votes
1 answer
2k views

Hyper-V won't start - Not enough storage available to complete this application

on windows 8.1 Pro 64bit when in Hyper-V Manager click Start Service, after a while (cca 60s) new event apears in event log - System saying: The Hyper-V Virtual Machine Management service ...
2 votes
1 answer
3k views

how to enable virtualization in BIOS settings

I am not able to find virtualization option in my BIOS settings Processor Info : Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz, 2926 Mhz, 2 Core(s), 2 Logical Processor(s) BIOS Version Info: Intel ...
0 votes
2 answers
11k views

How to avoid CRITICAL_STRUCTURE_CORRUPTION errors with VirtualBox inside VMWare

I have the same setup as described here: https://stackoverflow.com/questions/17175696/running-vagrant-inside-vmware-vm Now I'm frequently getting BSOD with a CRITICAL_STRUCTURE_CORRUPTION error and ...
0 votes
2 answers
651 views

Boot to VHD backup plan

I have a machine that I just reinstalled Windows and all of my applications onto... what a chore that is. I want to totally and completely avoid this from now on by creating an image. My first ...
2 votes
1 answer
865 views

Can we say that QEMU is a Virtual Machine?

What I perceive as a Virtual Machine is that it simply allows to load another Operating System side-by-side on its own sandboxed environment. It is limited to the same hardware architecture as the ...
-1 votes
3 answers
3k views

Is it possible to run Linux, Windows and Mac OS X on one machine in parallel? [closed]

I was wondering if it is possible to run all three big operating systems (Linux, Windows, Mac OS X) using a (preferable Barebone) Hypervisor in parallel on one system? Please state the configuration ...
1 vote
1 answer
90 views

VMWare Virtual Machines: can be accessed from Internet?

I'm new with VMWare Player virtual machines. I created two: one with Windows 7 and other one with Ubuntu Desktop. The host machine has connection to Internet, a firewall, etc. I can access it from ...
1 vote
0 answers
180 views

Hyper-V listed on Win 2012 but not Win 8.1 Pro (same machine)

I bought an Acer laptop, and installed Windows Server 2012 to do some web site testing for a client. On that installation, I used Server Manager to install Hyper-V, and two further installations on ...
0 votes
2 answers
877 views

Make local Virtual Box server available to other computers on the wider host OS LAN

I’m running VirtualBox on Windows 7, the guest virtual machine OS is Ubuntu Server and it’s set up in such a way that I can access it from the host machine on 192.168.56.101. The host machine IP in ...
1 vote
3 answers
3k views

What's wrong with this virtualbox machine

I've downloaded virtualbox, created a machine and installed a ubuntu image on it. Everything goes fine, until it's time to reboot the machine at the end of installation. It reboots into a blank screen,...
2 votes
1 answer
737 views

How to change the disk interface type for my Windows 8.1 guest on KVM

I recently setup a Windows 8.1 VM with KVM and virt-manager. I initially set the disk interface to be IDE, but I'd like to change it to virtio. However, if I just change the interface in the ...
0 votes
0 answers
664 views

Host system hangs when starting any virtual machine in Hyper-V

This is a problem that I noticed several times now and I can't find any answer to this, so I hope that anyone of you can help me out. Today I wanted to start a virtual machine in Hyper-V running on a ...
1 vote
1 answer
144 views

Solaris virtualization-zones [closed]

In the context of virtualization in Solaris, could someone provide a short description of the following: Zones Kernel zones Branded zones Non global zones
7 votes
2 answers
14k views

x64 Hardware Virtualisation support not detected on Windows 8.1

I get the following error (and yes I know this has been reported many times, but please read further): VT-x/AMD-V hardware acceleration is not available on your system. Your 64-bit guest will fail to ...
0 votes
1 answer
81 views

Running device firmware on a computer

I was wondering how I would go about running device firmware in a virtual machine on Windows 7 or some other way on windows 7. I am specifically thinking of running the Broadband-Hamnet firmware for ...
2 votes
0 answers
72 views

Unable to log into encrypted root drive after running virtual machine

I am unable to log into my encrypted hard drive on the host which is Ubuntu 14.04 LTS desktop. This all happened after I did the following. Ran VirtualBox Created a VDI drive Installed Kali Linux (...
0 votes
0 answers
140 views

Windows 8.1 keeps wanting to repair itself after installing Visual Studio 2013

I have a hp 650 with virtualization enabled. I installed windows 8.1 pro. I also installed Visual Studio 2013 Pro. However, after installing VS 2013 and at some point rebooting, Windows refuses to ...
0 votes
0 answers
269 views

Can user-mode Linux be compiled and run on UNIX systems?

e.g. on NetBSD or Solaris? Or does it require exclusively Linux-specific system calls, virtual filesystems, etc.? Also, if it's currently limited to Linux, what changes would be required to port it ...
2 votes
1 answer
34k views

Enable hardware virtualization on Asus P8P67 motherboard?

I have the aforementioend motherboard and it appears that hardware virtualization is disabled on it (as according to vmware). I've looked at the bios options as well as the manual and haven't found ...
0 votes
1 answer
78 views

Which system is this?

I'm working on a project that build its image .qcow2 based in a temporary file system generated in /tmp/ folder. It looks like this: $ls -la /tmp/ -rw------- 1 root root 7G Jan 30 09:55 image....
0 votes
1 answer
646 views

Sr-iov must be vlan?

I am trying to use sr-iov to pass packets to vm Is this obliged to work with vlan when working with sr-iov? If not, according to what will the different vf receive the packets?
11 votes
1 answer
12k views

Implementing PCI-Passthrough with Linux-KVM on Debian

I am attempting to use PCI-Passthrough to attach an old video card (Radeon 4770) to a virtual machine. I am using Linux-KVM to run my virtual machines on a Debian Linux (Wheezy, 3.2.0-4-amd64) host. ...
4 votes
3 answers
5k views

Do I need an Anti-Virus in a virtual environment?

I have installed Fedora on VirtualBox specially for malware testing. Do I still need an anti-virus protection in Fedora?
2 votes
1 answer
2k views

Relationship between OpenStack and Xen

Xen is an open source virtualization platform that allows you to install a bare metal hypervisor on a machine, which turns it into a host for other guest VMs. I can't really understand what OpenStack/...
5 votes
3 answers
3k views

Why doesn't Windows 8 Task Manager report the actual CPU frequency when Virtualisation is turned on?

In this question, I asked why the actual CPU frequency wasn't being reported in the performance tab of windows task manager. It turns out I had Virtualization turned on in the BIOS. When I disabled ...
0 votes
0 answers
580 views

How to "sandbox boot" an operating system in a Hypervisor without a full blown host OS?

I was wondering how I could setup a Hypervisor environment that boots an operating system in in a sandboxed¹ mode, without relying on a (full blown) host (Dom0) operating system. The target ...
2 votes
0 answers
711 views

Getting a 4TB USB drive (4k native sector size) to work with Xen and Windows 2008 guest

I am trying to get a new 4TB Seagate USB drive to work with Xen 6.2 and a Windows 2008 R2 virtual guest. The Xen host sees the drive fine, fdisk -l lists it with the correct capacity, etc. I can ...
0 votes
0 answers
265 views

Emulate 512-byte sectors with Xen

Anyone know how to make Xen 6.2 emulate 512-byte sectors when exposing a drive to a virtual guest? This would allow exposing native 4kB sector drives to older virtual guests like Windows 2003/2008 ...
1 vote
0 answers
868 views

Attempting to passthru USB disk to XENserver windows guest, reporting wrong size and error

I am attempting to passthru a brand new Seagate USB disk (4TB) to a Windows 2008 virtual guest in XEN 6.2. I connected the device, it is listed properly by fdisk -l (even lists correct size, but says ...
5 votes
3 answers
13k views

How can i setup a guest-guest network connection with virtualbox?

I have setup multiple guest hosts with NAT networking. On each hosts i have some portforwards so i can connect from my host (like 2222 to 22 host 1, 2223 to 22 host 2, ...). How can i setup a guest-...
5 votes
4 answers
24k views

How do you enable multi-core virtualization in Windows 8 Pro?

I've just got a new Dell Vostro 470 with a quad core (8 threads) i7 3770 and I'm trying to run virtual machines on it, which works fine, except if I want to assign multiple cores to a VM. I've checked ...

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