How to Install QEMU on Ubuntu

QEMU is a Linux emulator used to create virtual machines. Many people use Virtual Box on Windows, but fir Linux, you can use QEMU instead.

1

Make sure the CPU supports hardware virtualization.

  1. Image titled Install QEMU on Ubuntu Step 1
    Check if the CPU for the support of hardware for virtualization. On Intel, the processor is Intel VT and for AMD processors, it's AMD-V. Run the following command to check your machine's virtualization features:
    • egrep '(vmx
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2

Install bridge-utils at the command line.

  1. Image titled Install QEMU on Ubuntu Step 2
    This utility is used to bridge managed devices. To install:
    • sudo apt-get install -y bridge-utils resolvconf
    • sudo ifup br1
    • sudo service networking restart
3

Install KVM.

  1. Image titled Install QEMU on Ubuntu Step 3
    You'll need KVM for virtualization. To install:
    • apt-get update
    • sudo apt-get install -y qemu-kvm qemu virt-manager virt-viewer libvirt-bin
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4

Create a virtual machine.

  1. Image titled Install QEMU on Ubuntu Step 4
    Once you're all set up, you can create a virtual machine at the command line or in the GUI. Here's how:
    • For the command line, the command is:
      • sudo virt-install --name=itzgeekguest --ram=1024 --vcpus=1 --cdrom=/var/lib/libvirt/images/CentOS-6.9-x86_64-minimal.iso --os-type=linux --os-variant=rhel7 --network bridge=br1 --graphics=spice --disk path=/var/lib/libvirt/images/itzgeekguest.dsk,size=4
    • For graphical mode, you need to be root. Sometimes starting the Virtual Machine Manager from Dashboard does not give all the features to create a virtual machine.
      • sudo virt-manager
5

Manage your virtual machines.

  1. Image titled Install QEMU on Ubuntu Step 5
    You can manage your virtual machines in the virtual machine manager. To do so:
    • Choose "File" and "New Virtual Machine".
    • Browse for the desired operating system.
    • Choose the type and version for your operating system.
    • Choose your memory and CPU settings.
    • Tick "Enable storage for this virtual machine" and "Create a disk on the computer's hard drive," or pick "Select managed or other existing storage" and select your desired storage.
    • Choose "Advanced options" to select bridge networking; this allows the communication to outside networks.
    • Give a name to the VM and tick "Set a fixed MAC address".
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References

  1. https://www.unixmen.com/how-to-install-and-configure-qemu-in-ubuntu/
  2. https://qemu.weilnetz.de/doc/qemu-doc.html
  3. https://help.ubuntu.com/community/KVM/VirtManager

About This Article

Tested by:
wikiHow Technology Team
wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, volunteer authors worked to edit and improve it over time. This article has been viewed 168,439 times.
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Co-authors: 8
Updated: December 1, 2022
Views: 168,439
Categories: Install & Uninstall Software | Ubuntu
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