Qemu – POFTUT

Category: Qemu

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What Is VMEM (Virtual Memory) File and How To Use?

Virtual Memory or VMEM is a file extension used by virtualization software like VMware, Virtualbox etc. VMEM files generally store RAM or Physical Memory of the related virtual machine. VMEM File Below we can see that there is file named 564dfc3d-5bac-9fd4-b200-6f492dc81f20.vmem . Name is a UUID which is unique and created to store RAM. We can see that the size of the file is about 3.1 GB. We can delete this...

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Virt Install Tool For Virtualization With KVM and Qemu For Linux

Virtualization and cloud computing is future of the IT. There are a lot of tools and architectures to make virtual the systems. Every big vendor have their original or clone virtualization technology or ecosystem. Linux provides KVM, Qemu for opensource, fast virtualization. Open source cloud ecosystem Openstack is mainly positioned on KVM,Libvirt and Qemu. In this tutorial we will look how to use virt-install tool to create new virtual machines. Installation...

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How To Use Virt-Manager, Libvirt With Normal User Without Root Privileges and Without Asking Password

Virt-manager and libvirt is core tools used for virtualization in Linux ecosystem. As a end user I am using these tools to create and run virtual machines. I am running this tools as normal user without using privileged user like root But every time I try to run these tool the sudo password is asked me. This become a nightmare after some time. Are there any solution to run these tools...

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How To Mount VM Images with Guestmount?

guestmount is a tool used to mount VM images. This VM images can be different formats like qcow, vmdk, vdi etc. In this tutorial we will examine different use cases about guestmount. Mount Disk Image We will start by mounting given image partition to the specified directory. We will provide the image with the -a option. -m option will used to point the partition we want to mount which resides...

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How To Clone VM with Libguestfs?

Hi today we will look disk image tools/library which is very power full. We will look for now just the tools not the library but in the future we can investigate the library in c or python too. With the era of cloud computing things to be done very fast, practical and precise way. In the past system administrators was connecting systems one by one and complete operations. But now...

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Linux KVM/Qemu Virt-Customize Tutorial

I am gonna show you today a practical and useful tool for managing Linux virtual machines and disks. Whit virtualization people start to use a lot of vms in their personal or corporate pc’s. But managing them is difficult. I faced with these difficulties too. So I search for a tool helps me especially in updates. I came with virt-customize which is a tool in libguestfs-tools package. Here we start. Load...

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Qemu Tutorial

Qemu is very old virtualization technology used to virtualize system components and run operating systems on it. Before KVM and XEN QEMU was used heavily but it can not race with VMWARE or VIRTUAL PC. But with the KVM qemu get superfast speed for computing by using hardware based virtualization. QEMU acts as a hardware supplier and KVM is the CPU. KVM resides in linux kernel and there is little...

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Linux KVM Libvirt Tutorial

Hi today we are gonna look for managing vms especially in Linux with libvirt. Libvirt is a library and tools to manage vms. Lbivirt development is supported by Red hat and defacto tool in Linux world. In Linux Kvm/qemu is generally used for virtuulization but libvirt supports Xen, Virtualbox, Vmware, Hyperv too. To install and see info about the libvirt packet. As you see it is very little tiny packet...

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How To Create Snapshot of KVM / Libvirt / Qemu Vm?

KVM  is a hyper visor used by a lot of Linux distributions. I am currently using it and very happy with it. I have most of the abilities paid hypervisors like HyperV, Vmware provides. Snapshots is picture of the VM in specified time. For example we will install new application but it can brake our system. We want to backup our system and if something bad happens we want to...

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