Using GNS3 with QEMU and KVM Virtual Machines. Note: you must change Disk Bus to "IDE" You can now start the imported guest VM. Convert VMware. qcow2 image. If you're using Linux, you don't need VirtualBox or VMware to create virtual machines. The Flat back end uses either raw or QCOW2 storage. In a KVM environment, cloning the Cisco CSR1000v virtual machine using the virt-manager virtual machine manager creates a Cisco CSR1000v virtual machine that may be un-bootable. - foxlet/macOS-Simple-KVM. Optionally, set a specific MAC address for the virtual network interface. Not only, the Linux but one can also install this software on Windows and MacOS to test different Linux distros. By default openstack comes with small Linux foot print instance called cirros and we have tested it. virsh will launch qemu-kvm. Next create a name for the disk and set the format to qcow2, set the Max capacity and click Finish. Creating a KVM virtual machine (CLI method) If you do not want to use the virt-manager GUI application to create a KVM virtual machine, you can use these CLI commands instead. The "OVA4KVM" tool. Oracle Linux KVM Image for Oracle Cloud Infrastructure Easily set up a KVM host using Oracle Linux and Oracle Cloud. Make sure that you select qcow2 for the disk format. The reinvention of qcow2 - Kevin Wolf, Red Hat, KVM Forum 2011 - Duration: 31:17. import existing disk image. localdomain. If you want to create a snapshot of an existing image called centos-cleaninstall. 0 is very easy. vdi Posted on May 19, 2009 by bodhi. The KVM package provides qemu-kvm, a hypervisor specific tool to manage virtual machines. First VM uses 3GB of memory and xrv-1. 64-img-vm_kvm. After creating the VM I just added disk 2 right before clicking "Being Installation". I am running debian wheezy. I want to convert a Windows 7 C:\ Drive from my previous laptop into a qcow2 image which I wan to use to create a KVM virtual machine from on a new (linux based) computer. Step Four: Create a VM from the Command Line. If you prefer a graphical front-end, you could try out virt-manager (the author has tried this briefly but did not find it helpful — your experience might be different) or AQEMU (the author has not tried this). Create a virtual machine in KVM from the qcow2 image. More links with detail on this topic at the forums here: qcow2 to vmdk Fusion site:communities. Warning I had some issues converting the image using the qemu-utils version 0. The Hyper-V. The interface is a little confusing; first, you create your nice large kvm-pool in the left pane, and then create individual storage pools for your VMs in the right pane each time you create a new VM. For VMs with multiple disks, see the support article on Migrating a secondary Linux VM disk from vSphere to OpenStack for migrating the secondary disks, and follow the steps below for the boot disk. See System Requirements. qcow2 256G Formatting 'win7demo-kvm. I often use qemu-kvm the old way with this kind of qemu command : # qemu-img create mydisk. Also I tried to create template from existing qcow2 image, but cloudmin converted it to raw format although option "Whole disk (QCOW2)" was selected. qcow2 file or click Browse. user-data file for KVM VM. qcow2Create meta-data and user-data file for KVM VMCreate disk picture to create a brand new VMImport qcow2 to create VM in KVMCreate VM and. Customize and setup the network base on your requirement. The trick is that our KVM system did not work with vhdx Hyper-V virtual machine drives so we needed to convert them into a qcow2 image (more on why later. I want to convert a Windows 7 C:\ Drive from my previous laptop into a qcow2 image which I wan to use to create a KVM virtual machine from on a new (linux based) computer. The Virtual Machine Manager is a desktop tool for managing VM guests. You can customize it as needed. As per online documentation it should be possible to create a virtual machine using qcow2 storage, as per this link. After this i would overwrite the qcow2 image whit the qcow2 image file from my exixting vm. import existing disk image. qcow2— output file Fromt here on, I just use virt-manager to create the VM and used the "import the existing disk image" for disk 1. e Qcow2 base-image + Qcow2 overlay and Raw base-image + Qcow2 overlay. Right click on QEMU//KVM then click on New. Installing QCOW2 Image. 0 The use of an existing qcow2 file in proxmox 2. For ease of instruction, we will make use of the command line and the virt-install comand. qemu-img convert -f raw Virtual_Appliance_Debian-disk. By "Bad VM" I mean a VM that won't even boot into BIOS, it just displays a message "Press any key to continue". How Can I create a VM template for CentOS / Fedora / RHEL Linux distributions on KVM?. 3 VM with old and new qcow2 drivers, and for comparison raw images. How to import VM to Nutanix - Duration: 9:40. Hyper V Vhdx To Proxmox Qcow2 Create VM With Qcow2 Local Storage Step 5: Find the VMs qcow2 image. The virtual instance OS image can be created outside the openstack. 0 for Windows aimed specifically at converting VHD and VHDX to / from other common formats, including QCow2:. vmdk' to QCOW2 format and install in KVM. To create a vContainer host, you must create a virtual machine (VM) for it on a server that is running hypervisor software. After this i would overwrite the qcow2 image whit the qcow2 image file from my exixting vm. It is useful if you cannot use the graphical user interface, or need to automatize the process of creating virtual machines. By default openstack comes with small Linux foot print instance called cirros and we have tested it. Raw disk type has many advantage but also disadvantage. Create a base qcow2 image for the Central Server and Region Server:. Before creating the guest VM, we need to ensure the Guest OS is supported by the KVM, can check by running the following command : # osinfo-query os Create a Guest VM # virt-install --network. vmdk for the disk. In a KVM environment, cloning the Cisco CSR1000v virtual machine using the virt-manager virtual machine manager creates a Cisco CSR1000v virtual machine that may be un-bootable. qcow2 64G and add it to the end of basic. ova file) before the conversion is attempted. Now we will set disk size with -o size option. ovf file from the original export to check out all the hardware details of the VMware VM, and change the new VM settings to match. There was a performance overhead but nowdays that is almost negligent. import existing disk image. In this post we describe how to create a custom ExoGENI Qcow2 image from an existing virtual machine. Create or choose a folder (the conversion folder) in which you want to download and save the files necessary to convert the VM-Series firewall qcow2 image to the Cisco ENCS format. It consists of a loadable kernel module, kvm. Note: you must change Disk Bus to "IDE" You can now start the imported guest VM. Other Privileged access to your Linux system. libvirt is: A toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes)) snapshots can only be performed on certain type of disk formats. You will need KVM to be set up on the machine that will be running the virtual machine. Although the storage pool is a virtual container it is limited by two factors: maximum size allowed by qemu-kvm and the size of the disk on the host physical. However, the compression and the copy processes make it quite a bit slower than raw disk images. vmdk for the disk. By default, it creates raw files but will use QCOW2 when creating a disk from a QCOW2 if force_raw_images is not set in configuration. Migrating a Linux VM from vSphere to KVM. See System Requirements. Set Virt Type to virtio and set Architecture to qcow2. By "Bad VM" I mean a VM that won't even boot into BIOS, it just displays a message "Press any key to continue". raw -O qcow2 Virtual_Appliance_Debian-disk. I'll also include steps for restoring to an old snapshot of the VM. Before you deploy an OpenStack image, first you need to assure that all pieces are in place and we'll start by allocating floating. qcow2 => Virtual_Appliance_Debian-disk. Using GNS3 with QEMU and KVM Virtual Machines. Note: you must change Disk Bus to "IDE" You can now start the imported guest VM. Convert & Import a VMware Image to OpenStack (KVM) Posted on August 17, 2012 by Cody Bunch In playing around with the OpenStack Private Cloud distro (here), it comes with two Linux distributions by default. Fortunately, all of those issues had been fixed in GNS3 VM virtual machines security. Method 1: Convert first from qcow2 to RAW using qemu-utils in an Ubuntu Linux machine sudo apt-get install qemu-utils qemu-img convert -f qcow2 -O raw Convert from RAW to VDI using VBoxManage on any machine that has Virtualbox Installed VBoxManage convertfromraw \ --format vdi The "\" is just a line. # tar xvf nnSCZ739. We just made the change from oVirt to Proxmox, the reason is the topic for another post, but here i'm going to tell you how to export the VMs disc to a qcow2 file. Virt-Manager is one of the better open source, KVM virtualization management tools on Linux. Create or choose a folder (the conversion folder) in which you want to download and save the files necessary to convert the VM-Series firewall qcow2 image to the Cisco ENCS format. (Last Updated On: March 24, 2018)This short guide on How to Create VM snapshot on KVM aims at helping you use KVM virsh commands to take a snapshot of a VM. 20 and later. (Note: 5GB is not sufficient) kvm-img create -f qcow2 centos. Specifically, when using the COW mode, no changes are applied to the disk image. To create kvm VM with qcow2 disk format for supporting snapshots use: Create disk image for VM using something like: qemu-img create -f qcow2 ubuntu. virsh define Set the virtual machine to start automatically when the KVM host is restarted. I guess the simplest way would be some sort of dd plus a qemu-img convert operation. - Bad VM is result. Here are steps to add file-based storage (disk image) to virtual machine with virsh command on Linux: Step 1 - Create the new disk image. 2 using an ISO image (which I didn't download yet) on a KVM hypervisor. Hi everyone, I just completed this week-end a migration of our production virtual machines from a KVM host (on CentOS 6) to XenServer 6. virt-manager is version 0. libvirt is: A toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes)) snapshots can only be performed on certain type of disk formats. Create your first Virtual machine in RHEL/CentOS using KVM by Shujat Husain · Published June 1, 2017 · Updated May 31, 2017 Use of virtualization is on rise, more & more enterprises are adopting it. Oracle Linux KVM Image for Oracle Cloud Infrastructure Easily set up a KVM host using Oracle Linux and Oracle Cloud. If you do not already have one, create the target VM port group network. If you prefer a graphical front-end, you could try out virt-manager (the author has tried this briefly but did not find it helpful — your experience might be different) or AQEMU (the author has not tried this). Create VM using the qcow2 Image File (KVM) Use the following steps to create a VM on your Centos 7 machine. 5 Install virt-v2v The virt-v2v command converts virtual machines from a foreign hypervisor to run on KVM, managed by libvirt. Create a KVM domain definition file. Along with this, you will need to have a Windows Server 2012 ISO accessible on the computer and product key (Aptira is a Microsoft SPLA partner), and and the Fedora signed VirtIO drivers. This is how to create them: file to template. Note: Your CPU must have hardware virtualization support (Intel VT-x or AMD-V) to be able to use KVM. There are a few different ways you can do this, including creating the VM and attaching the disk after converting the vhdx. We released recently a version of qemu-img 2. 64-img-vm_kvm. Now, simply use virt-manager (or your favourite VM management tool) to create a new machine, using the newly converted qcow2 disk as the machine's disk. img with the size. How do I do this from GUI ? If not then from CLI. The interface is a little confusing; first, you create your nice large kvm-pool in the left pane, and then create individual storage pools for your VMs in the right pane each time you create a new VM. I am able to create VMs via the dashboard but when i launch the spice console, i'm presented with a black screen in virt-viewer, checking the running processes shows that the VM is running. Creating KVM VM with qcow2 disk format for supporting snapshots. How to Learn KVM-QEMU QCOW2 QEMU-IMG and Snapshots Tools หรือ Cloud คนมักจะนึกถึง Virtual Machine (VM) โดยพวก VM. You can easily create a very big virtual disk with this which will take only very small space on the host filesystem, e. - Bad VM is result. Copy cloud image. 0 is very easy. In this post we describe how to create a custom ExoGENI Qcow2 image from an existing virtual machine. Note: Your CPU must have hardware virtualization support (Intel VT-x or AMD-V) to be able to use KVM. First, install KVM and assorted tools:. $ qemu-img create -f qcow2 win7demo-kvm. Not only, the Linux but one can also install this software on Windows and MacOS to test different Linux distros. qemu-img convert -f raw Virtual_Appliance_Debian-disk. The trick is that our KVM system did not work with vhdx Hyper-V virtual machine drives so we needed to convert them into a qcow2 image (more on why later. qemu-img create -f qcow2 winxp. I am running debian wheezy. browse to the qcow2 disk above. Set Virt Type to virtio and set Architecture to qcow2. Allows you to create/delete/stop Qemu(KVM) Virtual Machines in Proxmox VE cluster. qcow2— output file Fromt here on, I just use virt-manager to create the VM and used the "import the existing disk image" for disk 1. - Create a VM, delete the SCSI disk and SCSI controller, you are stuck using the vmware IDE driver. In the Proxmox web GUI, click on Create VM and create a VM which meets the requirements of the image you converted. NSX Manager can be installed as a virtual appliance on a KVM host. There are a few different ways you can do this, including creating the VM and attaching the disk after converting the vhdx. In this tutorial you will learn. This article describes the process for creating a VM on a server running VMware Kernel-based Virtual Machine (KVM) Hypervisor. Also I tried to create template from existing qcow2 image, but cloudmin converted it to raw format although option "Whole disk (QCOW2)" was selected. ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel. See System Requirements. qcow2 256G Formatting 'win7demo-kvm. From the toolbar, click Create a new virtual machine. Hello, is it possible to create vm in cloudmin with kvm virtualization with qcow2 disk format ? If we create vm from template, it create raw disk with full preallocated disk space size. 0 I felt it was time to move back to VMware. KVM: Creating an Ubuntu VM with console-only access If you are running KVM on a console-only host OS, you can still do a full Ubuntu installation on a KVM guest VM by using serial port output and the Ubuntu Server text-based installer. After you migrated the VM to the correct disk format you will have to create a new VM, add existing disk, then boot and uninstall KVM specific drivers, then install VMware Tools. virsh pool-refresh default In the above example, it is assumed that the image is copied to the "default" pool. Snapshots in QEMU are images that refer to an original image using Redirect-on-Write to avoid changing the original image. ko or kvm-amd. Creating KVM Guests using virsh tool An example XML file to install an operating system from an ISO image The following example XML file can be modified to create a KVM and boot to any operating system from an ISO image or a CD-ROM drive. user-data file for KVM VM. This article describes the process for creating a VM on a server running VMware Kernel-based Virtual Machine (KVM) Hypervisor. KVM Virtualisation full headless install and guest vm management. Click Finish and the. See System Requirements. Specifically, when using the COW mode, no changes are applied to the disk image. Creating a KVM virtual machine (CLI method) If you do not want to use the virt-manager GUI application to create a KVM virtual machine, you can use these CLI commands instead. Knowing how to create and manage KVM virtual machines from command line can be really useful in certain scenarios: when working on headless servers, for example. This is where the copy on write layers work. qcow2 And then create a new VM in virt-manager, importing clone. - The KVM VM OS(s) ISO(s) file(s) need(s) to be uploaded into the KVM Server instance for the Guest VM install - Recommend using an additional block-storage volume and attaching it to the Nested KVM Server instance to hold the KVM VM(s) qcow2 disk image(s) file(s). KVM Guest virt-install examples with virtio drivers As a GUI alternative its possible to use virt-manager application for KVM VM installs. I would like to post my notes as a little tutorial here. We now have two disks for a virtual machine that we willcreate, proxy1. $ qemu-img create -f qcow2 win7demo-kvm. qcow2 8G virt-install. How To Create A Debian VM With Qemu. About this task To create a KVM virtual machine, complete the following steps: Procedure 1. ) Just to confirm what I did. also no errors are generated. I've tested using the command I used in conversion from from qcow2 to VDI and and from a raw file to a VDI it works. Instead of this tool, you can use the software package known as libvirt which is more convenient and recommended way to manage virtual machines. Nutanix Acropolis - create RHEL 7. Creating a KVM virtual machine (CLI method) If you do not want to use the virt-manager GUI application to create a KVM virtual machine, you can use these CLI commands instead. Most modern OSes are supported via KVM so you should have little issue getting things to work, especially with Linux guests. Download the BIG-IP VE file package ending with qcow2. Create a new Guest VM with virt-manager using the qcow2 disk above. Installing QCOW2 Image. The following table shows the installation times for a minimal RHEL 5. This article describes how to create a VM on a server running the Kernel-based Virtual Machine (KVM) Hypervisor software. So this means, if you have virtual machines which have a IMG HDD attached, than you will not be able to create snapshots of this virtual machine. This page shows how to setup and manage a virtualized environment with KVM in CentOS 7 or RHEL 7. Next create a name for the disk and set the format to qcow2, set the Max capacity and click Finish. Copy cloud image. It enables you to create new VM guests and various types of storage, and manage virtual networks. There are a few different ways you can do this, including creating the VM and attaching the disk after converting the vhdx. Note: Your CPU must have hardware virtualization support (Intel VT-x or AMD-V) to be able to use KVM. You will also need access to a virtualization tool. Nutanix Acropolis - create RHEL 7. From the toolbar, click Create a new virtual machine. In this tutorial you will learn. Importing into QEMU-KVM. The issue is caused by an increase in the size of the cloned image size created by virt-manager , compared with the original Cisco CSR1000v VM image. In general, is best to benchmark with a reasonable use case. qemu-img convert -O qcow2 For example:. Obtain the VM-Series firewall qcow2 image. To create a VM from a QCOW2 image: Running KVM. In this guide, we will migrate a Linux VM from vSphere to KVM. In this article today, we'll be covering all of the various ways users can create a backup of a Virt-Manager virtual machine. To create kvm VM with qcow2 disk format for supporting snapshots use: Create disk image for VM using something like: qemu-img create -f qcow2 ubuntu. 2 Installing from the Command Line with virt-install virt-install is a command line tool that helps you create new virtual machines using the libvirt library. This article describes how to convert a VMware (vCenter + ESX(i)) guest to the qcow2 format and import it to the KVM hypervisor using the virt-v2v command. qemu-img convert -f raw Virtual_Appliance_Debian-disk. Play on a virtual CentOS 7. GNS3 with QEMU can create linked clones of the original image when a device is pulled into the GNS3 topology, enabling the user to run multiple instances of a VM and re-use the same base image in another project. ovf file from the original export to check out all the hardware details of the VMware VM, and change the new VM settings to match. Create a KVM domain definition file. How do I do this from GUI ? If not then from CLI. The following table shows the installation times for a minimal RHEL 5. e Qcow2 base-image + Qcow2 overlay and Raw base-image + Qcow2 overlay. The mode "Copy-On-Write", often referred by the acronym COW, is available on some formats of virtual machine disk as QCOW2. Here are steps to add file-based storage (disk image) to virtual machine with virsh command on Linux: Step 1 - Create the new disk image. Click Finish and the. vdi disk images to KVM qcow2 file. How to convert a VM from VirtualBox to KVM November 28, 2016 November 28, 2016 Magnetic_dud Software Converting the virtual machine images is very easy, but many guides suggest you to convert from VDI to RAW and then from RAW to QCOW2. I want to convert a Windows 7 C:\ Drive from my previous laptop into a qcow2 image which I wan to use to create a KVM virtual machine from on a new (linux based) computer. It is useful if you cannot use the graphical user interface, or need to automatize the process of creating virtual machines. 3 VM with old and new qcow2 drivers, and for comparison raw images. qcow2 as its backing file. Create the new disk. Most modern OSes are supported via KVM so you should have little issue getting things to work, especially with Linux guests. With KVM, the configuration of a VM is stored in a domain XML file. In this guide we will learn how to create images and launch an instance of an image (virtual machine) in OpenStack and how to gain control over an instance via SSH. Attach a qcow2 disk to KVM guest. Thái Đức Phương 1,393 views. Nonetheless, being able to script interactions with virtual machines can greatly improve our productivity. We will use a script and some cloud images from CentOS to create virtual machines in just a few seconds. How to create VM using the qcow2 image file in KVM meta-data file for KVM VM. In this guide, we will migrate a Linux VM from vSphere to KVM. The qcow2 format is suggested for the desktop as it will not expand the file to the full size until the guest uses the space: qemu-img create -f qcow2 windows. GNS3_VM-disk1. Prepare a disk image for Windows. First VM uses 3GB of memory and xrv-1. browse to the qcow2 disk above. Sometime it's easier to bypass all this xml lines and just launch the vm. Create VM using the qcow2 Image File (KVM) Use the following steps to create a VM on your Centos 7 machine. Converting from lvm images to qcow2 isn't hard but the documentation is sparse. Not only, the Linux but one can also install this software on Windows and MacOS to test different Linux distros. ova file) before the conversion is attempted. The mode "Copy-On-Write", often referred by the acronym COW, is available on some formats of virtual machine disk as QCOW2. Thus, the first step to create a VM is to prepare its domain XML file. 64-img-vm_kvm. - The KVM VM OS(s) ISO(s) file(s) need(s) to be uploaded into the KVM Server instance for the Guest VM install - Recommend using an additional block-storage volume and attaching it to the Nested KVM Server instance to hold the KVM VM(s) qcow2 disk image(s) file(s). import existing disk image. Customize and setup the network base on your requirement. QEMU-KVM is a kernel-based virtualisation system for Linux, which you can invoke from the command line. Convert & Import a VMware Image to OpenStack (KVM) Posted on August 17, 2012 by Cody Bunch In playing around with the OpenStack Private Cloud distro (here), it comes with two Linux distributions by default. Install KVM (QEMU) on CentOS 7 - Virt Manager - Create VM Step 2 : Enter the location of ISO image as the physical CD-ROM pass through is not supported by the hypervisor, do not forget to choose operating system type and version. In virt-manager, create a new machine. 5 Install virt-v2v The virt-v2v command converts virtual machines from a foreign hypervisor to run on KVM, managed by libvirt. net > pro-6-M dedicated KVM Virtualisation full headless install and guest. In the second part we will build on this image to create many different servers. In this article will present you about how to configure Cisco ASAv firewall virtual servers image with qcow2 virtual security appliance format in GNS3 VM virtual server. We are ready to import these disks to the QEMU/ KVM virtual machine now. A disk image, such as the popular qcow2 disk image can be read and used as a file system without having to attach it to a running VM. By default libvirt tools create RAW virtual disks, and since we need snapshots you'll either have to use QCOW2 or LVM. In this article, you will learn how to prepare a Red Hat Enterprise Linux (RHEL) virtual machine for use in Azure. Save and close the file in vi/vim text editor. After you migrated the VM to the correct disk format you will have to create a new VM, add existing disk, then boot and uninstall KVM specific drivers, then install VMware Tools. virsh define Set the virtual machine to start automatically when the KVM host is restarted. qcow2Create meta-data and user-data file for KVM VMCreate disk picture to create a brand new VMImport qcow2 to create VM in KVMCreate VM and. Copy cloud image. In general, is best to benchmark with a reasonable use case. First, install KVM and assorted tools:. This task is common to NFVIS 3. raw -O qcow2 Virtual_Appliance_Debian-disk. 0 The use of an existing qcow2 file in proxmox 2. We can also take snapshots of QCOW2 images, making backups and rolling back changes very quick and easy. The Create a new virtual machine, Step 1 of 4 dialog box. If you are using qcow2-type disk images (used by QEMU/KVM), there are at least two ways to mount them on Linux. $ qemu-img create -f qcow2 win7demo-kvm. Copy the flat VMDK from the ESX host to the Image Library, or a machine with the qemu-img command available. In this article, you will learn how to prepare a Red Hat Enterprise Linux (RHEL) virtual machine for use in Azure. qcow2 file or click Browse. Hyper-V has a great snapshot and replication feature. ovf file from the original export to check out all the hardware details of the VMware VM, and change the new VM settings to match. This article describes the process for creating a VM on a server running VMware Kernel-based Virtual Machine (KVM) Hypervisor. The builder builds a virtual machine by creating a new virtual machine from scratch, booting it, installing an OS, rebooting the machine with the boot media as the virtual hard drive, provisioning software within the OS, then shutting it down. This article describes how to create a VM on a server running the Kernel-based Virtual Machine (KVM) Hypervisor software. Thus, the first step to create a VM is to prepare its domain XML file. On a real case, after booting the virtual machines will be used, polluting the cache. zazen I wrote this how to as I was having problems converting a VMware image to KVM. How to create VM using the qcow2 image file in KVM meta-data file for KVM VM. I am running debian wheezy. Obtain the VM-Series firewall qcow2 image. You can access the graphical console of VM guests with the built-in VNC viewer and view performance statistics, either locally or remotely. qemu-img create -f qcow2 foobar. How to create a new VM from qcow2 file? I have a qcow2 file that I'd like to use to create a new VM. This article describes how to use the virt-v2v tool to convert virtual machines from a non-KVM hypervisor to KVM. We can also take snapshots of QCOW2 images, making backups and rolling back changes very quick and easy. Installing vSRX with virt-manager, Installing vSRX with virt-install. In general, is best to benchmark with a reasonable use case. This works really well at preserving limited storage space, as well as at very quickly provisioning new VMs, once you have the master image the way you want it. - Use the vmdk file brought over from qemu-img convert as your disk. If you have an host with adequate resources running KVM, you could have the same ability, locally, to spin up a few Linux virtual machines to create your own lab in a box. But as a customer , I would like to put custom image in openstack for various requirement. You will also need access to a virtualization tool. If you do not already have one, create the target VM port group network. qcow2(the format kvm/qemu virtual machines uses for hard disk images) mounted to the server as a network block device. After copying, convert the VMDK to a QCOW2 image. The Hyper-V. It is useful if you cannot use the graphical user interface, or need to automatize the process of creating virtual machines. With it, setting up multiple virtual machines is a simple, streamlined process. Do not install anything in that machine, keep it off. The first part of this tutorial, you hopefully need to do only once: creating a fresh Debian system. If you're familiar with other tools like VirtualBox don't be surprised if you find KVM a little off-putting at first.