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Questions tagged [virtual-machines]

A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system. It is a software implementation of a machine (i.e. a computer) that executes programs like a physical machine.

Modern virtual machines are implemented with either software emulation or hardware virtualization. In most cases, both are implemented together. Usually the term refers to system virtual machines which provide a complete system platform which supports the execution of a complete operating system (OS). Note that process virtual machine exist too, which are designed to run a single program (a single process).

An essential characteristic of a virtual machine is that the software running inside is limited to the resources and abstractions provided by the virtual machine—it cannot break out of its virtual environment.

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Export or Convert Hyper-V VM to OVA/OVF

I can't find (Google) any documentation on how to export or convert hyper-v VMs to OVA or OVF. The hyper-visor is Windows Server 2012 R2 Standard. The results from Google only point to System Center but I don't have System Center 2012. Is there a…
Blake Zero
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Azure VM change OS Disk

I've create an Azure VM in RM and have deleted the VM and Components expect the OSDisk in an Premium Storage Account (Blobs). Now i wouldd like to create an new VM and attach the OS Disk to the new VM. I've tried to use the Set-AzureRmVmOsDisk, to…
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Is it possible to find information about host machine from inside virtual machine?

Is it possible to find information about host machine from inside virtual machine? For example its IP. EDIT: One thing that I have found so far is: HKLM\SOFTWARE\Microsoft\Virtual Machine\Guest\Parameters…
alex
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How do I get a network interface up in rhel 7?

I was given a rhel7 vmware template to use for provisioning rhel 7 test environments. When I created my vm, it booted up fine except that my network interface doesn't seem to come up. If I type ifconfig -a I get the following: ens192:…
Jason Thompson
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How to use more than 3 virtual disks in Linux using CentOS and XenServer

I've attached 5 virtual disks to a Virtual Machine in Citrix XenServer. The VM has the xs-tools installed. Initially it said that it couldn't add so many disks. After I installed the xs-tools, it let me add all the disks. But /dev doesn't show…
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Virtualbox VM (spawned by Vagrant) running, but inaccessible. What now?

I have a Virtualbox VM running Ubuntu that was started by Vagrant, on an OSX host. At some point, my ssh session to the guest stopped responding. I tried vagrant halt from a terminal window on the host (OS X). The shutdown process seemed to also…
Matt V.
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How do I set up an IP address on a Linux VM running in VM Player so I can access it from my Windows 7 host?

I have just installed an Openbravo appliance on my Windows 7 VM Player host. I am now staring at a command prompt that tells me to go to http://localhost to access the ERP system, but I cannot find any browser on the appliance. I am guessing I…
ProfK
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Virtual Audio Cable not working on Windows Server 2008 R2

I have Virtual Audio Cable successfully installed on my Windows Server 2008 R2 SP1 x64 virtual machine. It seem like driver works (new audio device in Device Manager group and VAC control panel works perfectly), but unfortunately if you go to…
Pavel Shchegolevatykh
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Azure Virtual Machines - what fault tolerance do they provide?

We are thinking about moving our virtual machines (Hyper-V VHDs) to Windows Azure but I haven't found much about what kind of fault tolerance that infrastructure provides. When I run VHD in Azure, I've got two questions: Is my VHD and all the data…
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VMplayer Virtual Disk Shrinking/Compacting/Defragmenting

I am using VMplayer on Windows 7 and 2008 R2. Inside the guest OS, in VMware tools, there is a "Prepare to shrink" option on the "Shrink" tab. In the host VMplayer menu there is "Defragment" and "Compact" options (available when the VM is shut…
fupsduck
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Portable Virtual Machine Recommendation?

I want to set-up a virtual machine on a pen drive, but I don't know what VM software might be portable or if it's possible to run virtual machine software without installation. Just for starters, it would be good if it will run any Windows host, but…
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KVM: maximum number of cores and amount of memory for VMs

I have a new 8 core machine with 16GB of RAM. I want to run VMs on it using Ubuntu and KVM. Nothing else but SSH will be running on the host. My question is what is the maximum amount of cores and of RAM which I can use for the VMs. Can I create 4…
ddofborg
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Number of logical processors per VM?

I have a server (quad core) running Windows Hyper-V Server 2008 R2 with two Windows Server 208 R2 Standard guest virtual machines. I've noticed the number of logical processors setting (under the Processor) settings page for each VM defaults to 1,…
Noldorin
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Connecting 2 VM running Windows 7

I have two VM's on my machine, both Windows 7 Pro. One is a MySQL server and one is running Apache 2.0. Essentially they mimic a split webserver/database setup. On XP this was fairly easy. However it is proving a lot more difficult. I found this…
graham.reeds
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Does running one Virtual Machine on a HYPER-V box make sense?

I am considering running HyperV for all my servers, because backup and disaster recovery plans are easier, when I can move the images around to any hardware and not have to worry about drivers. However, my machines are not powerful enough to house…
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