Qemu gui for linux

How to install Qemu/KVM and Virt-Manager GUI on Ubuntu 20.04 LTS

When it comes to running virtual machines on home Linux systems or for personal use most of us either go for VirtualBox or Vmware workstation player, however, there is more best option i.e KVM/Qemu. Qemu and KVM both are open source platforms for performing virtualization on Linux platforms. KVM stands for Kernel Virtual Machine, where QEMU is an emulator that can also be used as a virtualizer with the help of KVM to provide a native speed by accessing Intel VT-x or AMD V technology of modern processors.

KVM is a virtualization module that can easily be installed in any Linux kernel to allow it to function as a type 1 hypervisor.

Thus, the installation of KVM becomes a lot easier, we only need a Linux-based system such as Ubuntu and a processor with intel-v / VT-x or AMD-v support. All new processors have this instruction set extension. Only the small processors, such as the Atom from Intel, or very old processors may lack this feature.

However, by default to manage KVM virtual machines we need to use the command line, unlike VirtualBox or VMware it will not have a graphical user interface out of the box. Still, we can use various Graphical user interface Virtual Machine Manager applications such as Virt-Manager (Virtual Machine Manager), Gnome Boxes, and more… Here is the list of all such open-source platforms: 8 Best Open-source Virtual machine manager for Linux

Here we will see the installation of the popular Virt-Manager that makes KVM machines easy to operate just like VirtualBox. The special feature of VMM is that it forms a kind of intermediate layer, so that the management of the virtual machines is uniform, regardless of which virtualization solution is used, which reduces the administrative effort. The configuration is stored in XML files so that it can be corrected manually if necessary. We can also use VVM to manage the Virtual machines running on remote servers’ KVM using an encrypted connection.

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How to install qemu-kvm and gui (virt-manager) in Ubuntu

A GNU/Linux user actually can do machine virtualization without using Oracle VirtualBox, by just taking advantage of already included feature of Linux kernel, KVM. KVM (Kernel-based Virtual Machine) is a kernel module of Linux which enables a GNU/Linux operating system to run virtual machine of another operating system (just like VirtualBox). But because KVM is a part of the kernel (kernel module), it is very lightweight and fast (compared to VirtualBox and VMWare as external things). While KVM works in kernel-space, we use QEMU as the machine emulator for user-space. This QEMU KVM combination gives the users lightweight virtualization and good performance (but with no GUI). We can make it perfect with Red Hat Virtual Machine Manager as the GUI for QEMU KVM virtualization. QEMU, KVM, and Virtual Machine Manager are all free software. We introduce here how to install them in Ubuntu.

Install KVM

sudo apt-get install qemu-kvm libvirt-bin ubuntu-vm-builder bridge-utils 

• qemu-kvm contains the basic QEMU KVM programs
• libvirt-bin contains programs for the libvirt library (the library which takes advantage from Linux kernel’s virtualization feature)
• ubuntu-vm-builder contains Ubuntu VM Builder scripts (to help creating ready to use virtual machine in Ubuntu)
• bridge-utils contains programs to connect your host network to the virtual machine

Install A GUI for KVM

sudo apt-get install virt-manager 

Common Problem

Without relogin, or without adding username into libvirtd group, you may see Virtual Machine Manager error like picture below. If you have followed the rest of article, you just need to relogin.

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Links

A few blogs from developers are syndicated at Virt Tools Planet. For enrolling a blog into the planet, please submit a patch to this file to Dan Berrange.

Unofficial QEMU binaries

• Precompiled Windows versions, provided by Prashant Satish
• Precompiled Windows versions (32 and 64 bit), provided by Stefan Weil
• Precompiled Windows versions (currently only up to 2.6.0), provided by Eric Lassauge
• Slackware packages

Alternate QEMU repositories / Forks

• Openmoko (Neo1973) target
• Malc’s GIT repository including audio improvements, an x86 interpreter (useful for MSDOS demos heavily using self modifying code), full A/V capture
• Android emulation — see also http://gsoc11-qemu-android.blogspot.de/
• AR7 routers, TCG interpreter (maintained by Stefan Weil)
• Motorola 680×0 (not coldfire — maintained by Laurent Vivier)
• PA-RISC target — early stages (needs linux-user rework for stack growing up)
• kqemu archive includes patches for the former acceleration module
• qemu-linaro — obsolete (but includes OMAP3 support)
• Blackfin target (maintained by Mike Frysinger)
• 6502 CPU target
• AT91SAM9263 emulation
• Android Goldfish
• Android Ranchu
• Imagination META
• Macintosh 128k
• QEMU with Windbg stub

GUIs and management tools/systems

• libvirt provides an API for managing QEMU/KVM (and other hypervisors) exposed in C, Perl, Python, OCaml, Ruby, and Java, with bridges to AMQP/QMF and DMTF CIM.
• virt-install, virt-clone, virt-convert a set of command line tools for provisioning new VMs from install media, existing VMs and appliances, respectively. See also ‘virsh’ command line shell with libvirt.
• virt-manager, Virtual Machine Manager. A graphical desktop management app using libvirt. Can manage a single local host, or securely multiple remote hosts. Support QEMU, KVM, Xen and more
• AQEMU GUI for QEMU and KVM (Linux), docs (German)
• Ganeti, a cluster virtual server management software tool built on top of existing virtualization technologies such as Xen or KVM and other Open Source software.
• qemu-java, a full Java API to QEmu’s QApi, commandline image manipulation. This is a good foundation API for building integration testing systems, richer QEmu-based applications, and so forth.
• QtEmu, a graphical user interface for QEMU written in Qt5 for GNU/Linux, FreeBSD, Windows and MacOS

Legacy GUI front ends

These projects seem to be abandoned, thus these GUIs likely do not work with the latest version of QEMU anymore and the links are only provided here for historical reasons:

BIOSes and firmware used by QEMU

• The PC BIOS from the Bochs IA-32 Emulator Project
• The LGPL VGA BIOS project
• The OpenBIOS project, an open source Open Firmware implementation
• The OpenHackWare (archived 2008-01-24) Open Firmware implementation
• SLOF, the Slimline Open Firmware, is used in QEMU for the «pseries» machine
• Etherboot images from ROM-o-matic
• The EFI BIOS comes from the TianoCore Project.
• OVMF provides UEFI support for IA32 (x86) and X64 (x86-64) guests.
• U-Boot, a firmware which is used for some PowerPC boards in QEMU

Projects using the QEMU code

• The Xen virtual machine monitor
• KVM, Kernel-based Virtual Machine for Linux
• VirtualBox, an open source x86 virtualizer.
• SerialICE, a system software debugger
• MARSSx86, a cycle accurate accurate x86 simulator that uses QEMU

Other emulators

• The Bochs IA-32 Emulator Project
• The EM86 x86 emulator on Alpha-Linux
• The bintrans Dynamic Binary Translator
• MINDE, an emulator for some old x86 demos
• SkyEye, an ARM simulator
• Softgun, an ARM simulator
• SIMH, The Computer History Simulation Project
• GXemul, emulator for multiple systems including m88k
• ARAnyM, emulator for Atari ST/TT/Falcon family
• Hercules, S/370, S/390 and z/Arch emulator
• The PearPC PowerPC Architecture Emulator (development stalled)
• TME, The (Sun) Machine Emulator

Related links

• Book «qemu-kvm & libvirt«, 4. Edition 2010, ISBN 978-3-8370-0876-0, https://web.archive.org/web/20191029014310/http://qemu-buch.de/
• Valgrind, an open-source memory debugger for x86-GNU/Linux
• TLMu: TLMu — A SystemC TLM-2.0 integration of QEMU

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qemu-gui

This is my-snap’s description. You have a paragraph or two to tell the most important story about your snap. Keep it under 100 words though, we live in tweetspace and your description wants to look good in the snap store.

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Enable snaps on Ubuntu and install qemu-gui

Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.

Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.

Enable snapd

If you’re running Ubuntu 16.04 LTS (Xenial Xerus) or later, including Ubuntu 18.04 LTS (Bionic Beaver) and Ubuntu 20.04 LTS (Focal Fossa), you don’t need to do anything. Snap is already installed and ready to go.

For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.

Alternatively, snapd can be installed from the command line:

sudo apt update sudo apt install snapd 

Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.

Install qemu-gui

To install qemu-gui, simply use the following command:

sudo snap install qemu-gui --edge

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